I am trying to find the best way to failover my internet connections. I have two networks that both have an internet connection (completely different ISPs for redundancy). At each location we have a Cisco 2801 Router connected to the internet, and a Cisco 2801 connected to the frame. We currently do not use the internet connection at our second location (want to get it up and running as soon as we can), and the only way that location gets to the internet is over our T1 frame.
My question is, how can I setup the Cisco 2801 as the primary route for our internet connection (as already setup at our first location) but failover to the Cisco 2600 on the frame if the internet goes down at either location? We currently use static routes, and wonder if setting up dynamic routing is the ONLY option. Also, if I have to use dynamic routes, is there a way to setup which path is the primary path, and which is the backup or failover?
Here is a basic layout of our network:
Cisco 2600---Network A | \\ | Cisco 2801 | \\ Frame| Internet | / | Cisco 2801 | / Cisco 2600---Network B
Thank you for your responses!