DHCP does not work on repeater (a non-openwrt router)

Installing and Using OpenWrt
1

Just joined the forum as a new user of openwrt.

I flashed latest openwrt version on the router (Linksys EA8100). A wifi repeater (wifi expander), which is not running on openwrt, is connected to the router. The router is configured as a AP (WDS).

When a wifi device connects to the router directly, it works fine. Logread shows "DHCPDISCOVER(br-lan) ......", " DHCPOFFER(br-lan) ......", "DHCPREQUEST(br-lan) ......" and "DHCPACK(br-lan) ......".

However if it connects to the repeater, IP address could not be assigned. Logread shows
repeatedly "DHCPDISCOVER(br-lan) ......" and " DHCPOFFER(br-lan) ......".

Once a router reboot assigns the IP to the clients connected to the repeater. But not always. Sometimes, when I play around the Network settings and save the new changes (I can't remember what changes I made exactly, but should not be directly related to DHCP), the magic happens, i.e., the clients can be assigned a IP address properly. However, a router reboot, or turning on wifi on and off by running schedule using /sbin/wifi commands would drop the clients.

I tried different wifi devices (PC, android phone, ipad) and even two other wifi repeaters and saw this same problem. Other wifi repeaters work fine with the previous router as WDS clients.

Please can anyone give me some insights? Is a bug in OpenWrt? I saw others complaining similarly, however their wifi repeater also runs Openwrt, while mine are not.

2

If you see only these two, then it doesn't mean that the problem lies with OpenWrt. The client is supposed to send a DHCPREQUEST back to OpenWrt, and the last to reply with a DHCPACK to conclude the transaction.
Does the client get the offer? Does the client send a request? Where is it lost? You'll have to capture some packets to be sure which is the culprit, and I am not sure whether the wifi repeaters can do that.

3

The clients work fine with another configuration (other routers not running on openwrt and the same repeater. So I believe the clients should have sent the request and the repeater should have forward the request. Maybe the openwrt router discard such a request?

Please could you let me know how to capture the packets on the openwrt router? Cheers.

4

I would suspect that the repeater is swallowing the DHCP packets. I don't totally understand the mechanism for how this happens because the device is really supposed to be transparent (effectively a just a wifi-wifi bridge), but it was a common problem (maybe still is?) for Unifi APs after a certain firmware version. In the case of the Unifi APs, someone on reddit found that there was a link with the GTK rekeying interval that would mess things up, but the result was that the AP didn't forward DHCP packets properly.

5

opkg update; opkg install tcpdump; tcpdump -i any -evn udp port 67

7

I suspect so, esp. after I look at the packets I captured on the router on port 67 as shown in my another reply to trendy.

But if that is the case, why the repeater always works fine with my old routers like Vodafone HG659b?

8

Thanks for the instruction.

Below are the packets the router captured. Seems it sends out the IP address of 192.168.1.100?

root@router:~# tcpdump -i any -evn udp port 67
tcpdump: listening on any, link-type LINUX_SLL (Linux cooked v1), capture size 262144 bytes
11:23:49.005691   B [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xd8e6b909, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
11:23:49.005774 Out [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xd8e6b909, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
11:23:49.005824 Out [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xd8e6b909, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
11:23:49.005854 Out [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xd8e6b909, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
11:23:49.005691   B [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xd8e6b909, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
11:23:49.007943 Out [[router mac address]] ethertype IPv4 (0x0800), length 344: (tos 0xc0, ttl 64, id 43060, offset 0, flags [none], proto UDP (17), length 328)
    192.168.1.1.67 > 192.168.1.100.68: BOOTP/DHCP, Reply, length 300, xid 0xd8e6b909, Flags [none]
          Your-IP 192.168.1.100
          Server-IP 192.168.1.1
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Offer
            Server-ID Option 54, length 4: 192.168.1.1
            Lease-Time Option 51, length 4: 604800
            RN Option 58, length 4: 302400
            RB Option 59, length 4: 529200
            Subnet-Mask Option 1, length 4: 255.255.255.0
            BR Option 28, length 4: 192.168.1.255
            Default-Gateway Option 3, length 4: 192.168.1.1
            Domain-Name-Server Option 6, length 4: 192.168.1.1
            Domain-Name Option 15, length 3: "lan"
11:23:49.008001 Out [[router mac address]] ethertype IPv4 (0x0800), length 344: (tos 0xc0, ttl 64, id 43060, offset 0, flags [none], proto UDP (17), length 328)
    192.168.1.1.67 > 192.168.1.100.68: BOOTP/DHCP, Reply, length 300, xid 0xd8e6b909, Flags [none]
          Your-IP 192.168.1.100
          Server-IP 192.168.1.1
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Offer
            Server-ID Option 54, length 4: 192.168.1.1
            Lease-Time Option 51, length 4: 604800
            RN Option 58, length 4: 302400
            RB Option 59, length 4: 529200
            Subnet-Mask Option 1, length 4: 255.255.255.0
            BR Option 28, length 4: 192.168.1.255
            Default-Gateway Option 3, length 4: 192.168.1.1
            Domain-Name-Server Option 6, length 4: 192.168.1.1
            Domain-Name Option 15, length 3: "lan"
11:23:50.995710   B [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xd8e6b909, secs 1, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
11:23:50.995832 Out [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xd8e6b909, secs 1, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
11:23:50.995888 Out [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xd8e6b909, secs 1, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
11:23:50.995923 Out [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xd8e6b909, secs 1, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
11:23:50.995710   B [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xd8e6b909, secs 1, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
11:23:50.998046 Out [[router mac address]] ethertype IPv4 (0x0800), length 344: (tos 0xc0, ttl 64, id 43297, offset 0, flags [none], proto UDP (17), length 328)
    192.168.1.1.67 > 192.168.1.100.68: BOOTP/DHCP, Reply, length 300, xid 0xd8e6b909, secs 1, Flags [none]
          Your-IP 192.168.1.100
          Server-IP 192.168.1.1
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Offer
            Server-ID Option 54, length 4: 192.168.1.1
            Lease-Time Option 51, length 4: 604800
            RN Option 58, length 4: 302400
            RB Option 59, length 4: 529200
            Subnet-Mask Option 1, length 4: 255.255.255.0
            BR Option 28, length 4: 192.168.1.255
            Default-Gateway Option 3, length 4: 192.168.1.1
            Domain-Name-Server Option 6, length 4: 192.168.1.1
            Domain-Name Option 15, length 3: "lan"
11:23:50.998101 Out [[router mac address]] ethertype IPv4 (0x0800), length 344: (tos 0xc0, ttl 64, id 43297, offset 0, flags [none], proto UDP (17), length 328)
    192.168.1.1.67 > 192.168.1.100.68: BOOTP/DHCP, Reply, length 300, xid 0xd8e6b909, secs 1, Flags [none]
          Your-IP 192.168.1.100
          Server-IP 192.168.1.1
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Offer
            Server-ID Option 54, length 4: 192.168.1.1
            Lease-Time Option 51, length 4: 604800
            RN Option 58, length 4: 302400
            RB Option 59, length 4: 529200
            Subnet-Mask Option 1, length 4: 255.255.255.0
            BR Option 28, length 4: 192.168.1.255
            Default-Gateway Option 3, length 4: 192.168.1.1
            Domain-Name-Server Option 6, length 4: 192.168.1.1
            Domain-Name Option 15, length 3: "lan"
11:23:55.281600   B [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xd8e6b909, secs 6, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
11:23:55.281694 Out [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xd8e6b909, secs 6, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
11:23:55.281751 Out [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xd8e6b909, secs 6, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
11:23:55.281785 Out [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xd8e6b909, secs 6, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
11:23:55.281600   B [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xd8e6b909, secs 6, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
11:23:55.283669 Out [[router mac address]] ethertype IPv4 (0x0800), length 344: (tos 0xc0, ttl 64, id 43910, offset 0, flags [none], proto UDP (17), length 328)
    192.168.1.1.67 > 192.168.1.100.68: BOOTP/DHCP, Reply, length 300, xid 0xd8e6b909, secs 6, Flags [none]
          Your-IP 192.168.1.100
          Server-IP 192.168.1.1
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Offer
            Server-ID Option 54, length 4: 192.168.1.1
            Lease-Time Option 51, length 4: 604800
            RN Option 58, length 4: 302400
            RB Option 59, length 4: 529200
            Subnet-Mask Option 1, length 4: 255.255.255.0
            BR Option 28, length 4: 192.168.1.255
            Default-Gateway Option 3, length 4: 192.168.1.1
            Domain-Name-Server Option 6, length 4: 192.168.1.1
            Domain-Name Option 15, length 3: "lan"
11:23:55.283720 Out [[router mac address]] ethertype IPv4 (0x0800), length 344: (tos 0xc0, ttl 64, id 43910, offset 0, flags [none], proto UDP (17), length 328)
    192.168.1.1.67 > 192.168.1.100.68: BOOTP/DHCP, Reply, length 300, xid 0xd8e6b909, secs 6, Flags [none]
          Your-IP 192.168.1.100
          Server-IP 192.168.1.1
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Offer
            Server-ID Option 54, length 4: 192.168.1.1
            Lease-Time Option 51, length 4: 604800
            RN Option 58, length 4: 302400
            RB Option 59, length 4: 529200
            Subnet-Mask Option 1, length 4: 255.255.255.0
            BR Option 28, length 4: 192.168.1.255
            Default-Gateway Option 3, length 4: 192.168.1.1
            Domain-Name-Server Option 6, length 4: 192.168.1.1
            Domain-Name Option 15, length 3: "lan"
9

It doesn't make any difference which IP it offers, it anyway doesn't get the request from the client.
You could capture on some client too just to verify if the repeater is dropping the offer or the request.

10

Sorry, but doesn't "0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xd8e6b909, Flags [none]" means it receives the client's request?

I rebooted the repeater, clients many times but never had it working. Only some reboot on the router made it work. My gut feeling is still some issues on the router which runs openwrt.

11

No, the dhcp message type is on the 6th line of each packet, where it says option 53.

12

Hmm.

My limited IT knowledge and skills make it very difficult or impossible to further look at packets on the clients.

However, I am still puzzled why the repeater works fine with the other routers which does not run openwrt if the repeater does not forward the dhcp request. Also why on some occasions the repeater work fine with the router running on openwrt (sometimes it stops working when the router reboots or router' wifi radio turns off and back on again)?

13

If you cannot further troubleshoot it's not easy to pinpoint the problem.
At least run wireshark on a laptop connected to the repeater and use filter udp.port == 67

14

As you guided me how I can proceed, I will try that later on.

In the meantime, I captured the packets again when the phone can be assigned an IP address when it is connected to the repeater. I see the packets are almost the same. Line 6, which you pointed out, are exactly the same.

See below. What does "Option 53" means? Cheers.

root@router:~# tcpdump -i any -evn udp port 67
tcpdump: listening on any, link-type LINUX_SLL (Linux cooked v1), capture size 262144 bytes
09:22:59.444012   B [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xab3d691a, secs 6, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
09:22:59.444110 Out [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xab3d691a, secs 6, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
09:22:59.444170 Out [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xab3d691a, secs 6, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
09:22:59.444210 Out [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xab3d691a, secs 6, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
09:22:59.444012   B [[my phone mac address]] ethertype IPv4 (0x0800), length 330: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 314)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 286, xid 0xab3d691a, secs 6, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
09:22:59.447289 Out [[router mac address]] ethertype IPv4 (0x0800), length 344: (tos 0xc0, ttl 64, id 19326, offset 0, flags [none], proto UDP (17), length 328)
    192.168.1.1.67 > 192.168.1.100.68: BOOTP/DHCP, Reply, length 300, xid 0xab3d691a, secs 6, Flags [none]
          Your-IP 192.168.1.100
          Server-IP 192.168.1.1
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Offer
            Server-ID Option 54, length 4: 192.168.1.1
            Lease-Time Option 51, length 4: 604800
            RN Option 58, length 4: 302400
            RB Option 59, length 4: 529200
            Subnet-Mask Option 1, length 4: 255.255.255.0
            BR Option 28, length 4: 192.168.1.255
            Default-Gateway Option 3, length 4: 192.168.1.1
            Domain-Name-Server Option 6, length 4: 192.168.1.1
            Domain-Name Option 15, length 3: "lan"
09:22:59.447390 Out [[router mac address]] ethertype IPv4 (0x0800), length 344: (tos 0xc0, ttl 64, id 19326, offset 0, flags [none], proto UDP (17), length 328)
    192.168.1.1.67 > 192.168.1.100.68: BOOTP/DHCP, Reply, length 300, xid 0xab3d691a, secs 6, Flags [none]
          Your-IP 192.168.1.100
          Server-IP 192.168.1.1
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Offer
            Server-ID Option 54, length 4: 192.168.1.1
            Lease-Time Option 51, length 4: 604800
            RN Option 58, length 4: 302400
            RB Option 59, length 4: 529200
            Subnet-Mask Option 1, length 4: 255.255.255.0
            BR Option 28, length 4: 192.168.1.255
            Default-Gateway Option 3, length 4: 192.168.1.1
            Domain-Name-Server Option 6, length 4: 192.168.1.1
            Domain-Name Option 15, length 3: "lan"
09:23:01.717583   B [[my phone mac address]] ethertype IPv4 (0x0800), length 342: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 326)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 298, xid 0xab3d691a, secs 9, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Request
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            Requested-IP Option 50, length 4: 192.168.1.100
            Server-ID Option 54, length 4: 192.168.1.1
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
09:23:01.717688 Out [[my phone mac address]] ethertype IPv4 (0x0800), length 342: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 326)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 298, xid 0xab3d691a, secs 9, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Request
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            Requested-IP Option 50, length 4: 192.168.1.100
            Server-ID Option 54, length 4: 192.168.1.1
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
09:23:01.717749 Out [[my phone mac address]] ethertype IPv4 (0x0800), length 342: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 326)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 298, xid 0xab3d691a, secs 9, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Request
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            Requested-IP Option 50, length 4: 192.168.1.100
            Server-ID Option 54, length 4: 192.168.1.1
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
09:23:01.717785 Out [[my phone mac address]] ethertype IPv4 (0x0800), length 342: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 326)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 298, xid 0xab3d691a, secs 9, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Request
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            Requested-IP Option 50, length 4: 192.168.1.100
            Server-ID Option 54, length 4: 192.168.1.1
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
09:23:01.717583   B [[my phone mac address]] ethertype IPv4 (0x0800), length 342: (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 326)
    0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from [[my phone mac address]], length 298, xid 0xab3d691a, secs 9, Flags [none]
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Request
            Client-ID Option 61, length 7: ether [[my phone mac address]]
            Requested-IP Option 50, length 4: 192.168.1.100
            Server-ID Option 54, length 4: 192.168.1.1
            MSZ Option 57, length 2: 1500
            Vendor-Class Option 60, length 15: "android-dhcp-10"
            Parameter-Request Option 55, length 10:
              Subnet-Mask, Default-Gateway, Domain-Name-Server, Domain-Name
              MTU, BR, Lease-Time, RN
              RB, Vendor-Option
09:23:01.722091 Out [[router mac address]] ethertype IPv4 (0x0800), length 344: (tos 0xc0, ttl 64, id 19780, offset 0, flags [none], proto UDP (17), length 328)
    192.168.1.1.67 > 192.168.1.100.68: BOOTP/DHCP, Reply, length 300, xid 0xab3d691a, secs 9, Flags [none]
          Your-IP 192.168.1.100
          Server-IP 192.168.1.1
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: ACK
            Server-ID Option 54, length 4: 192.168.1.1
            Lease-Time Option 51, length 4: 604800
            RN Option 58, length 4: 302400
            RB Option 59, length 4: 529200
            Subnet-Mask Option 1, length 4: 255.255.255.0
            BR Option 28, length 4: 192.168.1.255
            Default-Gateway Option 3, length 4: 192.168.1.1
            Domain-Name-Server Option 6, length 4: 192.168.1.1
            Domain-Name Option 15, length 3: "lan"
09:23:01.722211 Out [[router mac address]] ethertype IPv4 (0x0800), length 344: (tos 0xc0, ttl 64, id 19780, offset 0, flags [none], proto UDP (17), length 328)
    192.168.1.1.67 > 192.168.1.100.68: BOOTP/DHCP, Reply, length 300, xid 0xab3d691a, secs 9, Flags [none]
          Your-IP 192.168.1.100
          Server-IP 192.168.1.1
          Client-Ethernet-Address [[my phone mac address]]
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: ACK
            Server-ID Option 54, length 4: 192.168.1.1
            Lease-Time Option 51, length 4: 604800
            RN Option 58, length 4: 302400
            RB Option 59, length 4: 529200
            Subnet-Mask Option 1, length 4: 255.255.255.0
            BR Option 28, length 4: 192.168.1.255
            Default-Gateway Option 3, length 4: 192.168.1.1
            Domain-Name-Server Option 6, length 4: 192.168.1.1
            Domain-Name Option 15, length 3: "lan"
^C
14 packets captured
29 packets received by filter
7 packets dropped by kernel
15

Where do you see that? I see a lot of retransmissions and eventually the request and ack packages.

DHCP Options in Plain English

For example, DHCPv4 option 53 is the DHCP message type option that declares whether a particular message is a discovery, request, or another message type.

16

Sorry for the late reply.

I captured the packets (see below) on my desktop, who failed to connected to the router / gateway at 192.168.1.1. Anything showing something wrong with the repeater? Cheers.

286 6.009234 0.0.0.0 255.255.255.255 DHCP 328 DHCP Discover - Transaction ID 0xe4a3b681
595 11.049009 0.0.0.0 255.255.255.255 DHCP 328 DHCP Discover - Transaction ID 0xe4a3b681
833 16.054590 0.0.0.0 255.255.255.255 DHCP 328 DHCP Discover - Transaction ID 0xe4a3b681
852 16.671899 0.0.0.0 255.255.255.255 DHCP 340 DHCP Request - Transaction ID 0xe4a3b681
903 26.757309 0.0.0.0 255.255.255.255 DHCP 374 DHCP Request - Transaction ID 0x1b912e7d
904 26.760719 192.168.1.251 255.255.255.255 DHCP 590 DHCP ACK - Transaction ID 0x1b912e7d
940 29.543654 192.168.1.1 255.255.255.255 DHCP 342 DHCP Offer - Transaction ID 0xb77e5442
941 29.543842 192.168.1.1 255.255.255.255 DHCP 359 DHCP ACK - Transaction ID 0x1b912e7d
942 29.546160 0.0.0.0 255.255.255.255 DHCP 590 DHCP Discover - Transaction ID 0xb0889e2e
943 29.547595 0.0.0.0 255.255.255.255 DHCP 590 DHCP Discover - Transaction ID 0xb0889e2e
946 29.578343 192.168.1.1 255.255.255.255 DHCP 342 DHCP Offer - Transaction ID 0xb0889e2e
947 29.578827 192.168.1.1 255.255.255.255 DHCP 342 DHCP Offer - Transaction ID 0xb0889e2e
1071 40.206454 0.0.0.0 255.255.255.255 DHCP 328 DHCP Discover - Transaction ID 0x8cc27542
1091 41.159568 192.168.1.101 192.168.1.251 DHCP 368 DHCP Request - Transaction ID 0xd2769e26
1096 43.162073 192.168.1.101 192.168.1.251 DHCP 368 DHCP Request - Transaction ID 0xd2769e26
1123 45.164722 192.168.1.101 192.168.1.251 DHCP 368 DHCP Request - Transaction ID 0xd2769e26
1124 45.233937 0.0.0.0 255.255.255.255 DHCP 328 DHCP Discover - Transaction ID 0x8cc27542
1194 49.175046 192.168.1.101 192.168.1.251 DHCP 368 DHCP Request - Transaction ID 0xd2769e26
1208 50.207025 0.0.0.0 255.255.255.255 DHCP 328 DHCP Discover - Transaction ID 0x8cc27542
1217 53.189122 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf90ef4ee
1220 56.196842 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf90ef4ee
1221 56.201963 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x84bf0ac4
1222 56.202543 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xfd637cc4
1223 56.205488 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x3a221c7b
1224 56.206195 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xe926a52f
1225 56.206600 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x625eff10
1226 56.207300 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xcebf4cf8
1227 56.210111 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x35e0b83c
1228 56.210671 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xe9ebcb8c
1229 56.211117 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xa4f659c8
1230 56.211446 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xb52e90b5
1231 56.211751 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x70533bc4
1232 56.212075 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xfe59ca28
1233 56.214847 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x1b004703
1234 56.217892 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xb5f9769c
1235 56.219193 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x4eeb4c61
1236 56.220704 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x3031b2aa
1237 56.221711 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xa6c7dc3c
1238 56.224711 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xbef976b0
1239 56.226641 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xaf841271
1240 56.227108 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x12080549
1241 56.227476 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xc2d6ec8b
1242 56.227800 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xb9d4406a
1243 56.228199 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xa2bcfc84
1244 56.232161 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x1521f04
1245 56.233970 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x9f4efa4
1246 56.235969 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x9651099c
1247 56.236426 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x446782d7
1248 56.236882 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xd88d8b4d
1249 56.237293 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x1d83fe8a
1250 56.237663 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xc6192500
1251 56.240628 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x1ca5bec5
1252 56.243602 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x266d35ea
1253 56.244709 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xa665dec8
1254 56.246549 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x4798ef6f
1255 56.247362 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x6a4e3a0f
1256 56.248128 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xc8bbc65f
1257 56.248693 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xd312a416
1258 56.249378 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xfd102d8e
1259 56.249762 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xb7cab96
1260 56.250346 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x7b007d4b
1261 56.250857 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x97da9a42
1262 56.251330 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xfe67e6e3
1263 56.252352 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x1d0ad2eb
1264 56.257073 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x9eaa3bd1
1265 56.260732 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x2685e5c5
1266 56.286261 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x474689b7
1267 56.287141 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x11935635
1268 56.287479 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x9bb841e7
1269 56.287816 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x9375e7f1
1270 56.288209 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x17e7da5a
1271 56.288650 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x9b76e92
1272 56.289174 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x7486d093
1273 56.289602 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x36bdf252
1274 56.290208 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x3eb8a81b
1275 56.290616 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x48c66b6b
1276 56.291002 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xa33cf5a1
1277 56.291341 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xbcb6bcc8
1278 56.291651 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xd648f119
1279 56.292266 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xc35d91d2
1280 56.292771 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x8e80008e
1281 56.293207 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xdac9a5fc
1282 56.293735 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x90ad1939
1283 56.294219 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xab9feae7
1284 56.294613 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x95cc3437
1285 56.295001 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xb7be50ff
1286 56.295398 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xb05e9cfc
1287 56.295732 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xbfcdf3a5
1288 56.296460 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x827a1640
1289 56.297616 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x8778bf5b
1290 56.298196 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x347e5d6a
1291 56.298526 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x60100de4
1292 56.299831 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xd8500e3b
1293 56.300472 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xb22d990e
1294 56.301646 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x8996d346
1295 56.302510 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x7e63ea81
1296 56.303153 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x626deacf
1297 56.303753 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xd047d327
1298 56.304134 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x692cb048
1299 56.304617 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x11e851d7
1300 56.304988 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x378baa39
1301 56.305458 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x2f51cf23
1302 56.305938 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xe894635b
1303 56.306444 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xb0ce155f
1304 56.307000 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x93c1573d
1305 56.307396 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x36fa5c5d
1306 56.307716 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf51adac4
1307 56.308038 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x8868cd7d
1308 56.308364 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf173338d
1309 56.308689 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x1b52f29
1310 56.311026 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xb93701e3
1311 56.315777 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x6e475da5
1312 56.318898 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x6030deb9
1313 56.321056 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xcecdcb8b
1314 56.322854 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xafc8b82
1315 56.324865 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf3026099
1316 56.325785 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x534e6c67
1317 56.328248 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x14132952
1318 56.328993 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xdef6a8e0
1319 56.329399 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x734c9f0f
1320 56.330072 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x2bd2f893
1321 56.332203 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xceabde9d
1322 56.333767 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x36c0252e
1323 56.334326 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xa4f740ee
1324 56.334665 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xe1e0c0b4
1325 56.336738 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x886fff38
1326 56.339796 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x1f7728de
1327 56.342810 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xac89cc96
1328 56.344576 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x3fc85c82
1329 56.347297 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xe550193c
1330 56.347815 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x2a159e44
1331 56.348601 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf62770f6
1332 56.350295 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xcc5727f0
1333 56.350735 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x317b56a3
1334 56.351075 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x802893e8
1335 56.351349 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x8ef5eb5f
1336 56.351680 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x9810303b
1337 56.352124 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xd78e3121
1338 56.352500 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xaaa44f02
1339 56.352827 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xaaaa050d
1340 56.353224 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x39554dc1
1341 56.353710 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x1c427be0
1342 56.354685 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xbe813511
1343 56.357390 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x5356e93e
1344 56.358111 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x424c6fc5
1345 56.358629 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf96c497a
1346 56.359202 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x2a8c9086
1347 56.359752 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xa532229e
1348 56.362582 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x9bcd2982
1349 56.367310 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x6169f5fd
1350 56.367933 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x8dba9c4
1351 56.372455 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x1158333d
1352 56.372948 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xfe9e0826
1353 56.373332 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xdfe2bd6b
1354 56.373651 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x3cf6bdfb
1355 56.373996 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x309bf69f
1356 56.375684 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x5a412698
1357 56.376457 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xafecce0c
1358 56.376934 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xbf038825
1359 56.377433 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x96f8e240
1360 56.377931 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xda53c7d0
1361 56.378436 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x312eee3f
1362 56.379619 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x6cc9e398
1363 56.392764 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x10a3cf02
1364 56.395764 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x662bac25
1365 56.404025 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf106ac1a
1366 56.406207 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x4d14f3c0
1367 56.410424 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x95b10a34
1368 56.410983 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x96a77a4c
1369 56.411344 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf0026fb
1370 56.411692 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xba833f2f
1371 56.412030 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xaec3d31b
1372 56.414812 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x1509b0df
1373 56.428032 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x7752bbed
1374 56.436829 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xa22db2ef
1375 56.439326 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x3e2f999
1376 56.439946 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x89dcbfa1
1377 56.444161 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x1825b376
1378 56.451403 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x472b8eb9
1379 56.452101 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xaa7a8037
1380 56.452737 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x24bf22bf
1381 56.453115 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xfd219acf
1382 56.453640 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x86c9e40c
1383 56.454056 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xcc670863
1384 56.454852 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x860202f9
1385 56.458071 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x45265003
1386 56.458864 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xe595a86d
1387 56.459494 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x19b9377a
1388 56.460201 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x16010a4b
1389 56.460688 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xd9c833f5
1390 56.461028 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xe18e8c0b
1391 56.461358 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x790e1b13
1392 56.461758 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x2c5ddc73
1393 56.462135 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xfde770be
1394 56.469207 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xe952d473
1395 56.469789 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xdf835852
1396 56.471421 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf38f8413
1397 56.473412 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x4750c25e
1398 56.475858 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x63b5da7c
1399 56.476777 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xed7326c4
1400 56.480084 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x31f3769b
1401 56.481299 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xbd3a837c
1402 56.485700 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x49e5e949
1403 56.488777 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x372af01b
1404 56.489979 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x6bd401b8
1405 56.490467 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xe6511f28
1406 56.491383 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x196090b4
1407 56.495987 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xdb0fd82e
1408 56.503498 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xfc7d1e6d
1409 56.504136 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xef8239ba
1410 56.504875 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x18ea2ee3
1411 56.505324 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x322f20d7
1412 56.505741 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf1e2ae0b
1413 56.506339 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xe63a09ac
1414 56.506892 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x5c45787b
1415 56.507736 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x5dfd54ba
1416 56.508243 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xd3be803d
1417 56.508864 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x2dc711e9
1418 56.509822 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x1e2bbb86
1419 56.510337 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x380ca19d
1420 56.510704 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xd976520e
1421 56.510981 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xff22d3ad
1422 56.511266 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x3ab12240
1423 56.511626 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xfeb039f1
1424 56.512042 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x8912147c
1425 56.512573 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x4098cf4d
1426 56.517863 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xc2dc9e0
1427 56.520688 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xb7b886d3
1428 56.521378 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xda7543b9
1429 56.521805 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xc289ac01
1430 56.522104 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x8e66c272
1431 56.522531 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xe13f3a25
1432 56.523269 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x404e43d
1433 56.525936 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xe0067c3d
1434 56.526713 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xb84adfd6
1435 56.527279 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf8bf0c71
1436 56.528245 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x31f8f0c4
1437 56.534228 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf7f3120c
1438 56.535065 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xa54b2e7a
1439 56.536642 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xeb398e57
1440 56.542598 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x82452621
1441 56.545109 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xdca3a618
1442 56.545838 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x258376b8
1443 56.546545 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xec77f692
1444 56.547493 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x7c0fdba3
1445 56.551165 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xc2b4dc68
1446 56.552237 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xaf85700a
1447 56.554188 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x545ec0dc
1448 56.554614 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x2a40d5ff
1449 56.554957 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xc67da947
1450 56.555283 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x9df41a0b
1451 56.555660 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x29676fdb
1452 56.556070 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf42932be
1453 56.556707 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xbc2b308
1454 56.559683 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf2ae641
1455 56.560701 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x1994cfe5
1456 56.564445 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xa8d2d52a
1457 56.565805 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xb7e65e04
1458 56.566854 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x6b7072bf
1459 56.568607 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf94d449b
1460 56.571886 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x627c9d99
1461 56.572461 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x2a8d9d8
1462 56.575031 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf35b6b62
1463 56.575472 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xe3129aa8
1464 56.577491 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xdd7b16ae
1465 56.578397 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x55fae5ce
1466 56.583521 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x37d45701
1467 56.585451 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x8edac50b
1468 56.586583 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x89b86831
1469 56.592020 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x54f44b24
1470 56.592833 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xed493cfe
1471 56.593424 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x56d5aa2d
1472 56.594153 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x42bb6d7c
1473 56.597110 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xea682c3d
1474 56.603237 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x9dc9f90f
1475 56.603657 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x905300e
1476 56.604527 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x7312d498
1477 56.605220 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x22d18db9
1478 56.607880 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xc39a4fec
1479 56.608608 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x5118bbcc
1480 56.609053 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x34daaa13
1481 56.609395 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x279030a3
1482 56.610073 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xf9084ea0
1483 56.611033 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x8b32357b
1484 56.613487 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x4b9ca3
1485 56.616454 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x8081c16b
1486 56.617070 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xb0535a12
1487 56.617875 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x11b0e259
1488 56.618591 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xfe26eb7f
1489 56.619289 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x8f37ed67
1490 56.622224 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x2a11867f
1491 56.622975 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x9b21507a
1492 56.623406 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x927e8d62
1493 56.625457 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xd5171d31
1494 56.627654 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x6905f8fc
1495 56.628271 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0xd2f688fc
1496 56.633676 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x5de6feea
1497 56.635194 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x1e835ddd
1505 59.116164 0.0.0.0 255.255.255.255 DHCP 328 DHCP Discover - Transaction ID 0x8cc27542
1523 62.692965 0.0.0.0 255.255.255.255 DHCP 349 DHCP Discover - Transaction ID 0x758fa177
1524 62.749766 192.168.1.1 255.255.255.255 DHCP 342 DHCP Offer - Transaction ID 0x758fa177
1525 62.750992 0.0.0.0 255.255.255.255 DHCP 380 DHCP Request - Transaction ID 0x758fa177
1526 62.954675 192.168.1.1 255.255.255.255 DHCP 359 DHCP ACK - Transaction ID 0x758fa177
1712 74.423110 0.0.0.0 255.255.255.255 DHCP 328 DHCP Discover - Transaction ID 0x8cc27542
3405 96.041940 0.0.0.0 255.255.255.255 DHCP 374 DHCP Request - Transaction ID 0x914f6775
3408 96.046293 192.168.1.251 255.255.255.255 DHCP 590 DHCP ACK - Transaction ID 0x914f6775
3430 96.241082 192.168.1.1 255.255.255.255 DHCP 359 DHCP ACK - Transaction ID 0x914f6775
3436 96.806834 0.0.0.0 255.255.255.255 DHCP 328 DHCP Discover - Transaction ID 0x59b5d698
3444 97.421894 0.0.0.0 255.255.255.255 DHCP 340 DHCP Request - Transaction ID 0x59b5d698
3463 100.097871 0.0.0.0 255.255.255.255 DHCP 590 DHCP Discover - Transaction ID 0xb0889e2e
3467 100.229420 192.168.1.1 255.255.255.255 DHCP 342 DHCP Offer - Transaction ID 0xb0889e2e
3469 100.623507 0.0.0.0 255.255.255.255 DHCP 328 DHCP Discover - Transaction ID 0xb2b4d040
3470 100.640497 0.0.0.0 255.255.255.255 DHCP 340 DHCP Request - Transaction ID 0xb2b4d040
3628 110.286619 192.168.1.101 192.168.1.251 DHCP 368 DHCP Request - Transaction ID 0x58f37d68
3677 113.301218 192.168.1.101 192.168.1.251 DHCP 368 DHCP Request - Transaction ID 0x58f37d68
3693 115.316709 192.168.1.101 192.168.1.251 DHCP 368 DHCP Request - Transaction ID 0x58f37d68
3705 119.323585 192.168.1.101 192.168.1.251 DHCP 368 DHCP Request - Transaction ID 0x58f37d68
3719 124.332447 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x3c518a44
3721 125.337467 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x3c518a44
3722 125.340408 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x5ff6c925
3723 125.341376 192.168.1.101 255.255.255.255 DHCP 368 DHCP Request - Transaction ID 0x9388cbd7
17

Which device is .251 and why is it responding to DHCP requests?

19

That is the IP address of the repeater, which I just days ago set its DHCP service automatic. In this case, my mentioned problem can be largely resolved esp after a few minutes after it and/or the router reboots.

I know it is better to turn off the repeater's dhcp service. However, in that case, the problem occurs very often and in most cases can not be resolved.

Thanks.

20

Then you seem to have an issue with the repeater.
In case you have multiple dhcp servers in a broadcast domain, you can get multiple offers from them. There are many discovers that go unanswered, so not even the repeater replies to them.