Ethernet Not Forwarding IP on RB411GL

[DogHead]

On a network with over 50 wireless routers using a combination of RB411GL and RB433GL and R52Hn modules, we have two RB411GL that are exhibiting a strange behavior. All are using 6.35 and are configured identically except for SSID, IP address, channel, etc.

We have an IP camera attached via a cross over cable to the Ethernet port. The camera is statically addressed, as is the RB411GL. The Ethernet port is bridged to WLAN1, and the bridge is not running spanning tree.

When checking ARP on the router, it sees the camera and has the correct IP.

When a laptop attaches to the router, it can ping and send traffic on the network. When the laptop attaches to the camera, it sees the video and can communicate with the camera. But when the camera is attached to the RB411GL it cannot be pinged and there is no traffic. The board says the link is up. Blinking it does no good.

We changed cameras and it does the same.

No firewall rules, no filters, no nat.
Subnet masking is correct.

The router does not like the camera…any ideas why?

[ZeroByte]

@DogHead

When a laptop attaches to the router, it can ping and send traffic on the network. When the laptop attaches to the camera, it sees the video and can communicate with the camera. But when the camera is attached to the RB411GL it cannot be pinged and there is no traffic.

Do you mean when the laptop is attached to the RB411GL? If you really do mean the router, then it seems that you missed testing a laptop connected to the 411…

But in any case, this sounds like a WDS issue to me, except that you say that the correct MAC of the camera shows up at the router. If you clear the entry and try to ping the camera from the router, does the correct ARP entry re-appear?

What happens if you put a dumb switch between the 411 and the camera? What happens if you plug the laptop into the dumb switch at the same time as the camera?