Posted: Thu Jan 15, 2015 21:06 Post subject: VLAN configuration/detecting dead WAN port
So my router's been fucked lately. I think the WAN port is dead. If I connect the modem cable into the LAN ports I can get to the internet from my laptop, but not my desktop (even if I switch which of the lan ports they are connected on). Both are set up with DHCP and I have tried auto assigning IP.
If I assign a specific IP I can get to the router, but the router doesn't see the WAN.
Anyway, I am wondering if there is a good primer on how this VLAN stuff works. I would like to reconfigure the ports to use a LAN port as a WAN port.
* How do I definitively determine if a port is dead?
* How do I find out which vlans are bridges, etc (I can telnet to the router from wireless)
* Why can I get to the internet when plugging the WAN cable to LAN from another LAN port? Note that this connection doesn't see the router, so it looks like it's just bridging the two.
Yeah I actually tried that without luck. I don't know how the vlan numbers map to the numbers on the box. On top of that, ifconfig lists vlan1 and vlan2, while the nvram show has vlan0 and vlan1.
Here is the filtered list of what I tried:
(each one with an nvram commit and a reboot after, plus a dhcp release and renew in the web client).
Code:
root@DD-WRT:~# nvram set vlan0ports="2 3 4"; nvram set vlan1ports="1 0 5 5*"
root@DD-WRT:~# nvram set vlan0ports="1 2 3"; nvram set vlan1ports="4 0 5 5*"
root@DD-WRT:~# nvram set vlan0ports="1 3 4"; nvram set vlan1ports="2 0 5 5*"
root@DD-WRT:~# nvram set vlan0ports="1 2 4"; nvram set vlan1ports="3 0 5 5*"
Note that when I had tried this a few days ago I _could_ get my laptop to request an IP from the ISP directly, but what I need is for the ROUTER to get an IP from the ISP so it can share this connection with the WLAN clients.
Here is the filtered list of what I tried:
(each one with an nvram commit and a reboot after, plus a dhcp release and renew in the web client).
Code:
root@DD-WRT:~# nvram set vlan0ports="2 3 4"; nvram set vlan1ports="1 0 5 5*"
root@DD-WRT:~# nvram set vlan0ports="1 2 3"; nvram set vlan1ports="4 0 5 5*"
root@DD-WRT:~# nvram set vlan0ports="1 3 4"; nvram set vlan1ports="2 0 5 5*"
root@DD-WRT:~# nvram set vlan0ports="1 2 4"; nvram set vlan1ports="3 0 5 5*"
Note that when I had tried this a few days ago I _could_ get my laptop to request an IP from the ISP directly, but what I need is for the ROUTER to get an IP from the ISP so it can share this connection with the WLAN clients.
Have you figured out how to do it?
I'm with similar problem with TL-WDR3500 with latest build
Here is the filtered list of what I tried:
(each one with an nvram commit and a reboot after, plus a dhcp release and renew in the web client).
Code:
root@DD-WRT:~# nvram set vlan0ports="2 3 4"; nvram set vlan1ports="1 0 5 5*"
root@DD-WRT:~# nvram set vlan0ports="1 2 3"; nvram set vlan1ports="4 0 5 5*"
root@DD-WRT:~# nvram set vlan0ports="1 3 4"; nvram set vlan1ports="2 0 5 5*"
root@DD-WRT:~# nvram set vlan0ports="1 2 4"; nvram set vlan1ports="3 0 5 5*"
Note that when I had tried this a few days ago I _could_ get my laptop to request an IP from the ISP directly, but what I need is for the ROUTER to get an IP from the ISP so it can share this connection with the WLAN clients.
Have you figured out how to do it?
I'm with similar problem with TL-WDR3500 with latest build
Nope. I ended up giving up, buying a new router, and using that router as a managed switch.
Joined: 06 Feb 2010 Posts: 7401 Location: Little Rock
Posted: Sat Aug 01, 2015 11:24 Post subject:
Atheros hardware doesn't support vlan port switching with dd-wrt. AFAIK - atheros with dd-wrt only supports vlan tagging, it should have noted that in the wiki page introduction.
