I'm in the process of setting up a redundant internet connection with two ISPs. I have two routers, each one connected to an ISP. Each router only has two interfaces. Is this going to work well? I'm thinking that there might be a bunch of issues with this configuration.
Yes, we are taking full routes from both. The problem I saw with using default routing is that you have no way of distinguishing if either ISP is having problems, and say drops a few routes to various parts of the Internet. With full routes, you should receive notification of that kind of problem (withdrawn routes) and start using the other ISP in that case.
Several ways to set this up, and it appears you are on the right track.
some of this comes down to how complicated you want the config to be.
You can use HSRP, as you suggested.
You can us iBGP, probably the best option as someone else pointed out.
alot of this comes down to the type of network you want to have, or contracted to have.
some locations I have worked with had 2 T-1's separate routers but one of the T's was only for failover so it would not be used until something happen to the other T-1. This would change what you would want to do.
so whatever your design there may be something more specific you would want to run. However, sounds like you would want to do iBGP or PfR routing.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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