[Novalug] multihomed linux router with public ip addresses

[Miguel González Castaños]

> BTW, I should have mentioned, one can also use public IPs in the DMZ,
> and use the security appliance as a direct, public router, instead of a 1:1
> NAT or DNAT.  But the DMZ can also be private IPs as well.
>    

But how? If you use two IPs of the same subnet in the linux router, you 
get two routes in the routing table for that subnet that are forwarded 
to different interfaces. It's what I said in my first message. Let's say

eth2 - 80.35.2.3 - facing to the Internet

eth0  - 10.30.1.1

eth1 - 80.35.2.2

if you run netstat -rn you get two routes for 80.35.2.0 that are routed 
to eth2 and eth1

Miguel