Hey guys,
I have a bit of an oddball query for you all. Lets say I have a linux box that is acting as a router / fw. there is two segments or LANs. One of the segments (172.16.0.0/24) has inside hosts while the other connects to a single cisco router on 10.0.0.0/24. Now here is the weird part. The cisco router is not within our administrative control and cannot be configured. It cannot route to the 172.16.0.0 network. There is one host say 172.16.0.50 that needs to communicate with the cisco router 10.0.0.1. Ok no problem I will use a static NAT to convert 172.16.0.50 to say 10.0.0.50 when exiting the 10.0.0.0/24 interface. The problem: I see the NAT taking place but then the cisco has to ARP for the MAC of 10.0.0.50. the linux gateway does not respond to these ARP requests and therefore communication fails. The first thing that comes to mind here is gratuitous ARP. But how do I get the linux gateway to issue these gratuitous ARPs for the virtual NAT address? How does the cisco ASAs take care of this problem? Any advice would be greatly appreciated J Thanks! Aaron. _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/