I'm looking for magic, and this is the closest topic I can find to my problem.

I've got this working with physical switches, --my problem is the virtual kind.

I'm running Red-Nectar's image on ESXi, I want to connect a virtual router, a virtual PC (fedora). So I make the cloud, where the ubuntu I'm running on now has seven Ethernet interfaces, they all appear to work after a considerable amount of work and tuning, and that's wonderful.

The problem I want to solve is that arp-replys are not making it from the router back to either the ubuntu (host for GNS) or the fedora. When I try to make pings happen in every direction, the router ends up learning the mac address of both hosts, but not the other way around. Having a wireshark trace is nice, but it only confirms what I already knew from the command line. All of them in the same vitual-virtual lan. I have no wires to touch. Any suggestions are appreciated.

Router> 192.168.35.1
Ubuntu> 192.168.35.36
Fedora> 192.168.35.48

JONC