My office has two internet connections available, a high bandwidth multiple line ADSL setup, and a single slow shared ADSL link.
I want to setup redundancy, so if the high bandwidth connection goes down, windows server will direct traffic to the second router on the shared link. The network is setup as follows:
Router1 (primary, high speed): 192.168.0.1
Router2 (backup, slow speed): 192.168.0.2
Windows Server 2003: 192.168.0.3 – Runs DHCP to all workstations.
So, what I want to do is set all workstations default gateway to the windows server machine, then have the windows server machine forward internet traffic on to router 1, or if its down, router 2. This will provide seamless internet connectivity for the office no matter what connection is up or down.
I have researched this for the last few days, but am still unable to set it up. I think using OPSF to detect what gateway is up and direct traffic appropriately?
Could someone give me a step by step guide on setting up RRAS to achieve the above, or suggest a better solution if there is one, although I prefer the idea that all traffic goes through the windows server machine before it goes to the gateway.
Please also note due to budget no major hardware can be purchased, ie cisco routers.