Buffalo WLI-TX4-G54HP

Links of Interest

 * Buffalo product page
 * Same board as Buffalo's WHR-HP-G54, but missing a WAN port.

Flashing dd-wrt
This procedure was tested using v24-SP2, release 08/07/10 (SVN revision: 14896), with the VPN build.

Facts you should know:
 * is the interface to access all physical network ports
 * is the wireless network interface
 * is the virtual network device that represents LAN ports. It's "real" device is.
 * is the virtual network device that represents WAN ports. It's "real" device is also.

Procedure
1. Install dd-wrt, turn on the SSH server, and set your public key.

2. SSH into the router.

3. Update the boardflags from  to   (add  ): root@wli-tx4-g54hp:~# nvram get boardflags 0x3658 root@wli-tx4-g54hp:~# nvram set boardflags="0x3758" root@wli-tx4-g54hp:~# nvram commit
 * Adding  is necessary because the hardware doesn't have a WAN port and the firmware is initially configured without VLAN support.  I tried this because the hardware is basically the same as the WHR-HP-G54, which supports VLANs and has   by default.  This is the crucial step; otherwise, everything is set up to use eth0, which treats all physical network ports the same.

4. Reboot. After booting, there should now be a "VLAN" tab under "Setup" and there should be two new interfaces in the "Networking" tab:  and.
 * After this point, the remaining steps configure the router to be just like other routers that have a WAN port, with one exception: we map an additional port to the WAN network since there is no WAN port.

5. In the Setup > VLAN tab of the web interface, change the assigned bridge of the first line to "LAN".

6. Uncheck port 4 from the first line, and check it in the second line. This configures port 4 as a WAN port and the others as LAN ports.

7. Save and open the Setup > Networking tab.

8. Under "Port Setup", set the "WAN Port Assignment" to.

9. Save and reboot the router.

10. SSH into the router.

11. Make some final changes that can't be done through the GUI. Specifically, remove  from the bridge and replace it with. This bridges the LAN ports with the wireless network. root@wli-tx4-g54hp:~# nvram get ifnames eth0 eth1 root@wli-tx4-g54hp:~# nvram set ifnames="vlan0 eth1" root@wli-tx4-g54hp:~# nvram commit

12. Reboot and port 4 should be a WAN port!

Troubleshooting
root@wli-tx4-g54hp:~# nvram get vlan0ports 1 2 3 5* root@wli-tx4-g54hp:~# nvram get vlan1ports 0 4 5
 * Port to VLAN map : I'm not entirely sure that the GUI changes above will correctly change port 4 to WAN rather than LAN. I did these steps, but I was also mucking around with   variables at the time.  To make sure, check the   and   variables .    should be "1 2 3 5*" and   should be "0 4 5":
 * Otherwise, set them to the above and reboot:

root@wli-tx4-g54hp:~# nvram set vlan0ports="1 2 3 5*" root@wli-tx4-g54hp:~# nvram set vlan1ports="0 4 5" root@wli-tx4-g54hp:~# nvram commit root@wli-tx4-g54hp:~# reboot

root@wli-tx4-g54hp:~# nvram show | grep vlan | sort dtag_vlan8=0 lan_ifnames=vlan0 eth1 port0vlans=1 18 19 port1vlans=1 18 19 port2vlans=0 18 19 port3vlans=0 18 19 port4vlans=0 18 19 port5vlans=0 1 16 pppoe_ifname=vlan1 pppoe_wan_ifname=vlan1 vlan0_bridged=1 vlan0_mtu=1500 vlan0_multicast=0 vlan0_nat=1 vlan0hwname=et0 vlan0ports=2 3 4 5* vlan1_bridged=1 vlan1_mtu=1500 vlan1_multicast=0 vlan1_nat=1 vlan1hwname=et0 vlan1ports=0 1 5 vlan_tagcount=0 vlan_tags= vlans=1 wan_default=vlan1 wan_iface=vlan1 wan_ifname2=vlan1 wan_ifname=vlan1 wan_ifnames=vlan1 wl0_vlan_prio_mode=off
 * Other VLAN related settings : Other settings to check are related to VLANs. I made sure mine were copied from another working Buffalo router running DD-WRT.  Make sure they look like these: