We currently have a Samsung router given to us by Covad. It is configured like this:
PPPoFR T1 WAN (samsung router) x.x.x.49/29(public address) gateway | | __________________________________________________________________ | | | | ethernet port(samsung router) ethernet port(samsung router) | | | | separate firewall/NAT separate firewall/NAT x.x.x.50/29(public address) x.x.x.51/29(public address) | | server LAN VOIP LAN
So the Samsung router is routing the T1 WAN to the two firewalls, each firewall has its own public address in the same network as the gateway.
I desperately need to replicate this with a Cisco 1841 so I can get QOS going for the VOIP side. I have looked at IRB, but that mentions VLANs which seemed confusing when all of the hosts that will connect to the router have public IPs.
So how do I configure fe0/0 and fe0/1 to let their connected hosts with public IPs (x.x.x.50 and x.x.x.51) get to serial0/0/0(T1 WAN x.x.x.49)?