Configuring a Dual-WAN Router for improved Terminal Services (RDP) performance
Posted on 2008-10-22
I have two servers, one a file server running Windows Server 2000 and the other is a terminal server running Windows Server 2003. Most of my remote terminal services uses complain about the performance, particularly during the day when my office is full and has many people accessing the internet at the same time.
To try to improve the situation, I added a second WAN connection and purchased a FortiGate-50B dual wan firewall router. The way I wanted it setup was to use my WAN1 (Bell DSL with static IP) solely for the port 3389 on the terminal server, and then use WAN2 (Rogers Cable) for all other internet usage (web browsing/e-mail/etc.). The company that installed this had it setup this way at first, but the problem came up that I could no longer access Bell's SMTP server because it needs to go through the Bell ISP (it won't let you access their SMTP from another ISP, in my case Roger's). They tried to fix this, but in the end they've setup load balancing with means that although I can access the SMTP, my Bell connection is being used for more that terminal services, and as a result the remote user's performance isn't much improved.
Does anyone know how I can setup my FortiGate-50B so that:
All 3389 traffic uses WAN1 (Bell)
All 25 traffic (SMTP) uses WAN1 (Bell)
All other traffic (web browsing, port 587 SMTP, incoming mail, etc.) uses WAN2 (Rogers)
Thanks in advance!