TL-MR6400 v1.0 WAN Port

Installing and Using OpenWrt Network and Wireless Configuration
1

Hi,

I got my hands onto TL-MR6400 v1.0 with hardware broken SIM card slot.

Friend wanted to trash it, I picked it, as I have another friend who wants simple, no frills basic wifi N.
So far I flashed OpenWRT, disabled adb-enablemodem service (no use), and removed WAN interface what was tied to usb0.
Router has 4 100M ports, LAN1, LAN2, LAN3 and LAN4/WAN.
On web interface under Network > Switch I can see 4 interfaces:

CPU (eth0),LAN 1, LAN 2, LAN 3
tagged, untagged, untagged, untagged

root@OpenWrt:~# cat /etc/config/network

config interface 'loopback'
        option device 'lo'
        option proto 'static'
        option ipaddr '127.0.0.1'
        option netmask '255.0.0.0'

config device
        option name 'br-lan'
        option type 'bridge'
        list ports 'eth0.1'
        list ports 'eth1'

config interface 'lan'
        option device 'br-lan'
        option proto 'static'
        option ipaddr '192.168.1.1'
        option netmask '255.255.255.0'
        option ip6assign '60'

config switch
        option name 'switch0'
        option reset '1'
        option enable_vlan '1'

config switch_vlan
        option device 'switch0'
        option vlan '1'
        option ports '1 2 3 0t'

root@OpenWrt:~# ifconfig
br-lan    Link encap:Ethernet  HWaddr XX:XX:XX:XX:XX:DD
          inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:24597 errors:0 dropped:0 overruns:0 frame:0
          TX packets:39604 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:3258649 (3.1 MiB)  TX bytes:35087212 (33.4 MiB)

eth0      Link encap:Ethernet  HWaddr XX:XX:XX:XX:XX:DD
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:24633 errors:0 dropped:0 overruns:0 frame:0
          TX packets:39642 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:3705367 (3.5 MiB)  TX bytes:35251054 (33.6 MiB)
          Interrupt:5

eth0.1    Link encap:Ethernet  HWaddr XX:XX:XX:XX:XX:DD
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:24597 errors:0 dropped:0 overruns:0 frame:0
          TX packets:39604 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:3258649 (3.1 MiB)  TX bytes:35087212 (33.4 MiB)

eth1      Link encap:Ethernet  HWaddr XX:XX:XX:XX:XX:E0
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:4

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:1055 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1055 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:80996 (79.0 KiB)  TX bytes:80996 (79.0 KiB)

root@OpenWrt:~# brctl show br-lan
bridge name     bridge id               STP enabled     interfaces
br-lan          7fff.d46e0e5a01dd       no              eth1
                                                        eth0.1

I was used to be able to reconfigure one port as WAN port, but apparently forgot something, or there is something specific with hardware for this model, I believe new VLAN was to be added, with tagging only WAN port. However then I get like a bridge configuration, I get ip from upstream server.

Any help would be much appreciated.

2

Hi

looks like LAN 1,2,3 are on internal switch

and eth1 (LAN4) is already standalone interface

so you should tie WAN to eth1
no need to touch anything in swconfig

3

Thank you @NPeca75 for response, I also assumed that and assigned eth1 to WAN to no aval.
Interface does not get assigned IP from upstream router, even when I set up interface as DHCP client.

eth1      Link encap:Ethernet  HWaddr XX:XX:XX:XX:XX:E0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1480 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1561 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:237528 (231.9 KiB)  TX bytes:231071 (225.6 KiB)

LED WAN indicator is also blinking when WAN cable is connected. Once I reboot router LAN client is assigned IP from upstream router in range 10.0.0.0/24.

interfaces
interfaces927×250 15.5 KB

4

sorry, i don't understand this :frowning:

5

so, there it is
you put eth1 in br-lan
this is the problem

if you want to use ETH1 as WAN port, it could NOT be a part of LAN bridge !!!

1 Like
6

Indeed that was the unnoticed problem, thank you @NPeca75, for resolving this.
Configuration with eth1 removed:

root@OpenWrt:~# cat /etc/config/network

config interface 'loopback'
        option device 'lo'
        option proto 'static'
        option ipaddr '127.0.0.1'
        option netmask '255.0.0.0'

config device
        option name 'br-lan'
        option type 'bridge'
        list ports 'eth0.1'

config interface 'lan'
        option device 'br-lan'
        option proto 'static'
        option ipaddr '192.168.1.1'
        option netmask '255.255.255.0'
        option ip6assign '60'

config switch
        option name 'switch0'
        option reset '1'
        option enable_vlan '1'

config switch_vlan
        option device 'switch0'
        option vlan '1'
        option ports '1 2 3 0t'

config interface 'wan'
        option proto 'dhcp'
        option device 'eth1'
        option hostname '*'
1 Like
7

ok, please look at answer above your reply

8

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