topic Re: Multiple Gateways - 2 ISP's in Windows Server 2003

Multiple Gateways - 2 ISP's

RobertMN — Sat, 23 Feb 2008 02:21:02 GMT

Network Setup:
ISP1->Router1->192.168.10.1 (Internal IP)
ISP2->Router1->192.168.10.254 (Internal IP)
I want to be able to connect to my servers (192.168.10.5 for example) using RDP over both ISP's. Problem is that it will not work if my server has both IP's as their default gateway. Any help would be greatly appreciated.
I do not want to use a Dual WAN router.

Re: Multiple Gateways - 2 ISP's

Mike (Sinew) — Sun, 24 Feb 2008 09:31:43 GMT

Your server needs "policy based routing", which in this case means that traffic on a incoming interface is returned over the same interface. Windows cannot do this out of the box, it uses the first default gateway if you have multiple gateways with the same metric. I believe that the ISA server is able to do this.

Re: Multiple Gateways - 2 ISP's

Alan_152 — Tue, 26 Feb 2008 17:58:00 GMT

My preference would be to use a cheapo box with Freesco or something similar. Since you don't want to go in that direction, you can use the "route" command to send traffic down the appropriate interfaces.