Thanks for the information.

I think the problem is that I'm trying to do something a little out of the 
ordinary which is why I've had so much troubles.  Specifically I'm trying to 
setup a system using two ISPs.  I'm not trying to fail over or balance or 
anything I just want to masq all my "other" local machines (eth2) to the 
cable modem (eth0) while using proxyarp to access my servers (eth1) from the 
dsl line (eth3).

It took me a while to figure out that I needed to define a sperate default 
route for the servers in order to get things to work at all.  I did that be 
defining some rules to indentify traffic from the servers and define a 
seperate table (mostly pulling from the few ISP sharing articles I could 
fine).

Here's what I have now  (x.y.z is the dsl IPs, a.b.c are the cable IPs)

firewall# ip ru
0:      from all lookup local
32763:  from x.y.z.212 lookup Servers
32764:  from x.y.z.211 lookup Servers
32765:  from x.y.z.210 lookup Servers
32766:  from all lookup main
32767:  from all lookup default

firewall# ip r
x.y.z.211 dev eth3  scope link
x.y.z.210 dev eth3  scope link
x.y.z.212 dev eth3  scope link
x.y.z.208/29 dev eth1  proto kernel  scope link  src x.y.z.214
192.168.2.0/24 dev eth3  proto kernel  scope link  src 192.168.2.254
192.168.1.0/24 dev eth2  proto kernel  scope link  src 192.168.1.254
a.b.c.0/21 dev eth0  proto kernel  scope link  src a.b.c.149
default via a.b.c.1 dev eth0

firewall# ip r l t Servers
192.168.1.0/24 via 192.168.1.254 dev eth2
default via x.y.z.209 dev eth1


It seems that i have a condition in these rules that is causing ProxyArp to 
respond on my internal server interface (eth3) when I don't want it to.  
With what you've said I've got a pretty good guess that theres an error in 
how I've specfied the rules to select the alternate table or that on the 
tables is missing something.  It took me a *LONG* time to figure out that I 
had to add a route back to the masqaraded machines in the Servers table so I 
could get to my servers locally (which was the other main reason I wanted to 
do this in the first place!)

Thanks again




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