TCPDUMP
This it where it gets very interesting!
// log when plugged into wall
root@OpenWrt:~# tcpdump -i eth1 -v
tcpdump: WARNING: eth1: no IPv4 address assigned
tcpdump: listening on eth1, link-type EN10MB (Ethernet), capture size 65535 bytes
0 packets captured
0 packets received by filter
0 packets dropped by kernel
// log when plugged into zyxels lan-port
root@OpenWrt:~# tcpdump -i eth1 -v
tcpdump: WARNING: eth1: no IPv4 address assigned
tcpdump: listening on eth1, link-type EN10MB (Ethernet), capture size 65535 bytes
23:38:30.650194 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 16) fe80::226:f2ff:fef7:ade1 > ff02::2: [icmp6 sum ok] ICMP6, router solicitation, length 16
source link-address option (1), length 8 (1): 00:26:f2:f7:ad:e1
23:38:30.730286 IP (tos 0x0, ttl 64, id 0, offset 0, flags [none], proto UDP (17), length 328)
0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 00:26:f2:f7:ad:e1 (oui Unknown), length 300, xid 0x67c4edaa, Flags [none]
Client-Ethernet-Address 00:26:f2:f7:ad:e1 (oui Unknown)
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Discover
MSZ Option 57, length 2: 576
Parameter-Request Option 55, length 7:
Subnet-Mask, Default-Gateway, Domain-Name-Server, Hostname
Domain-Name, BR, NTP
Vendor-Class Option 60, length 12: "udhcp 1.23.2"
23:38:30.732950 IP (tos 0x0, ttl 255, id 37779, offset 0, flags [none], proto UDP (17), length 576)
192.168.1.254.bootps > 192.168.1.68.bootpc: BOOTP/DHCP, Reply, length 548, xid 0x67c4edaa, Flags [none]
Your-IP 192.168.1.68
Server-IP 192.168.1.254
Client-Ethernet-Address 00:26:f2:f7:ad:e1 (oui Unknown)
sname "ZyXEL_P-2602HWT-F1"
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Offer
Subnet-Mask Option 1, length 4: 255.255.255.0
Default-Gateway Option 3, length 4: 192.168.1.254
Domain-Name-Server Option 6, length 4: 192.168.1.254
Hostname Option 12, length 7: "dhcppc4"
Domain-Name Option 15, length 4: "lan^@"
NTP Option 42, length 4: 195.54.122.168
RN Option 58, length 4: 129600
RB Option 59, length 4: 226800
Lease-Time Option 51, length 4: 259200
Server-ID Option 54, length 4: 192.168.1.254
As you can see above, when i plug the netgear wan port into the wall, nothing happends, 0 packages received or sent, when i plug the netgear wan port into one of Zyxels switch ports it immediately starts the handshake process and then gets the stream from the Zyxel.
Edit Even if i click on connect in the interface tab nothing happends...
(Last edited by organismen on 19 May 2016, 00:48)