This guy seems to be running into some of the same problems we are:
1. Domino code on Linux does not seems to include all NIC's in a "pool" so that not only can one have only one service running on a given TCP port, if domino sees that a given port is being used on one NIC (say port 80)then no other service---even one on another nic can run on that port.
2. You can list the IP addresses of the others in the notes.ini, but don't you dare put more than one in the ports= line or you'll generate "LISTEN" errors (see point 1).
3. I have been able to overcome the above on port 1352 above by listing the TCPIP addresses of the ports in the notes.ini, but only allowing the CLUSTER port to be in the ports= line.
4. Both Nic's now send NRPC on both NIC's (and the CLUSTER traffic seems to only go down that NIC), but as soon as I try and create a new port for ICM traffic using a second IP address on eth0, a LISTEN error occurs and CLUSTER traffic stops running.
5. Because of the above, the ICM will not (yet?) function on this server.
I'm going to follow this thread and see where it leads, but I am not optimistic at this time:
http://www-10.lotus.com/ldd/r5linuxforum.nsf/0/D2AC62E3AA8944EB85256811007541D0?OpenDocument