I have a question about m0n0wall. I intend to use it at our colocation 
facility to provide firewall and VPN services for our network. My 
question is this: I have 128 IP addresses assigned to me by my colo 
facility. Those IP's are used on 3 different servers that I want to sit 
behind the firewall. Ideally I would like not to use NAT, and just keep 
the IP's configured the way they are on the servers, i.e. not to have 
internal IP's on the servers at all. Is this possible? I think it may be 
from what I've read using Advanced Outbound NAT, although I'm not sure. 
So basically I would like the firewall to just be a "passthrough" and 
just have the firewall'ing functions work to drop traffic I haven't 
authorized.

If this will work this way, would my colo facility have to add anything 
into their routers to make it work? Also, would I need to change 
anything on the servers at all, like the default gateway?

Any help would be appreciated, thank you!