Presently I have a setup like this ... We have 3600 Internal Router1 which is connected a switch1 and a PIX Firewall whose inside interface is connected to the same switch1, and the outside interface of PIX is directly connected to the ISP1. We have got 32 IPs from the ISP1 and we have setup PAT, NAT and Static NaT.
Now we are planning to have another link from a different ISP2. I have three ethernet ports on my PIX 515e firewall. already the outside and inside are used and left is third port which i wanted to make use as second outside port for the ISP2 and setup it up in such way that i get redundant links, failover capalities.
Can any one of you give me you valuable suggestions and steps in order to acheive this.