Has anyone successfully multihomed their site between Comcast and AT&T or similar types of WAN services? I currently have a broadband connection coming from Comcast and a 4xT1 connection from AT&T that I would like to use to divide primarily http requests and also for failover if necessary. The Comcast connection would be a Business Class 16Mbs down and 2Mbs up. The AT&T connection is 6Mbs up and 6Mbs down and would be our primary WAN connection. AT&T actually manages a 2800 series router on our premise. I have Linux firewall inside of that to do internal routing and NAT to the 2800 router. I have an ASA 5510 that I could swap in for the Linux box if that would make things easier.