Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I'm seeing some strange behavior with my DD-WRT setup (FW v V24sp2), where traffic from my wireless network portion of the LAN to the wired LAN works, but I cannot SWITCH from two machines connected to the wired LAN, even though I have connectivity and WAN access from everywhere. Has anyone seen something like this before? For example,

192.168.10.146 is connected to LAN port 1, and 192.168.10.220 is connected to LAN port 2, and they cannot see each other, but wireless clients can see both of them, and they both have WAN connectivity.

My knowledge of networks is pretty spotty, but I don't think there's anything unusual in my configuration, and I would expect that LAN trafic would route by default.

Reference data

root@router:~# nvram show | grep vlan.*ports 
size: 20411 bytes (45125 left) 
vlan0ports=1 2 3 4 5* 
vlan1ports=0 5 
root@router:~# nvram show | grep vlan.*hwname 
size: 20411 bytes (45125 left) 
vlan1hwname=et0 
vlan0hwname=et0 
root@router:~# nvram show | grep port.*vlans 
size: 20411 bytes (45125 left) 
port5vlans=0 1 16 
port3vlans=0 
port1vlans=0 
port4vlans=0 
port2vlans=0 
port0vlans=1 
root@router:~#
share|improve this question
    
Recheck your terminology: are you saying that switching between two LAN ports of your WRT does not work? i.e. confirm that you actually have IP addresses in the same network (like 192.168.1.x & 192.168.1.y if your WRT is 192.168.1.1) –  nik Jul 3 '12 at 16:43
    
Edited. thank you nik. –  user1424487 Jul 3 '12 at 16:47

1 Answer 1

Check VLAN configurations. Are the LAN ports on different VLANs?
What is the next-hop seen to the Internet from machines on both LAN ports? (is it the same IP?)

Update: I think you have inadvertently reached a VLAN Detached Networks configuration.

Update2: a quick starter reference (or this one).

share|improve this answer
    
root@router:~# nvram show | grep vlan.*ports size: 20411 bytes (45125 left) vlan0ports=1 2 3 4 5* vlan1ports=0 5 root@router:~# nvram show | grep vlan.*hwname size: 20411 bytes (45125 left) vlan1hwname=et0 vlan0hwname=et0 root@router:~# nvram show | grep port.*vlans size: 20411 bytes (45125 left) port5vlans=0 1 16 port3vlans=0 port1vlans=0 port4vlans=0 port2vlans=0 port0vlans=1 root@router:~# –  user1424487 Jul 3 '12 at 17:00
    
This from the docs looks normal, right? –  user1424487 Jul 3 '12 at 17:03
    
Hmm, I am not used to WRT configurations. And your wrapped comment does not help my yet un-caffeinated mind. From what I gather, your configuration seems to be defaults from A VLAN standpoint. Why don't you format your outputs and place them in your question area? That way you will get faster help. –  nik Jul 3 '12 at 17:16
    
Yeah. I tried, but no matter what I can't figure out how to format this... isn't that silly? I'm not usually this clueless. –  user1424487 Jul 3 '12 at 17:29
    
did an initial patch to your question... –  nik Jul 3 '12 at 17:35

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.