neighbour discovery and more than one NIC

[Steven LatrŽe]

Hi all, I have a computer set-up that consists of several PC's that are chained together. Every PC has two NICs and they are chained like this: PCA (eth 1) <---> (eth2) PCB (eth1) <--> (eth2) PCC (eth1) All the addresses run Neighbour Discovery. Now suppose I want to connect to the address corresponding with eth2 on PCC from PCA. When I try to ping it, the ping request gets to PCB but then blocks (PCB doesn't forward the request to PCC via eth1), I suppose this happens because it has to "switch" from NIC. Is there a way to ensure that this connection can be made with Neighbour Discovery? So in other words that I can connect two subnetworks with the two NICS? Thanks in advance for your help! Steven