[clug] iptables and proxyarp

[jm]

The last time I played with proxyarp it was with ppp a number of years 
ago. Now, I'm looking at it to get me around a problem with firewalling. 
The problem is that the friewall, a linux box, was added after some 
routing decisions were made and key servers were added, not all of which 
are under my control. This has me thinking that if the firewall can be 
convinced to do proxyarp and pretend to be the servers and forward the 
packets onto the server that I can place the servers behind the 
protection of the firewall without having to introduce twisted routing. 
Has anyone done this or know if this is feasible?

Jeff.