I have one ISR router having two internet links to two different ISPs and having different IP pool from both of them , LAN IP add are of 10.88.0.0 series .I have put two default routes towards both ISPs. Now I have two requirements , first is to load balance and second is to do NAT . I have a switch connected to this router and then a firewall. I have to NAT firewall's IP with WAN pool or if possible , i can even nat with other IP add but my main requirement is to make through the internet to LAN by combining the bandwith of both ISPs. Plz help me in this .