How can I do 'inbound' load-balancing without using BGP? Currently we are using a Linkproof load-balancer, so the DNS query hits our external dns server and then forwards to the LP so it can suggest which of the 3 ISP links to come back in on. Can I do something similar to this using just Cisco routers? Also, we have 2 external dns servers on 3 of the ISP links, would that be enough to at least do a 'backup' type scenario? And each of the 3 links has its own public address scheme. I guess w/ bgp we would on need one of the schemes and 3 different ISPs, correct? Does anyone have a sample configuration using 3 different borders routers w/ 3 different ISPs using BGP?
I have this problem too.