Tuesday, June 15, 2021

Dual Default Gateway in Ring Topology using EIGRP

So I'm working on my lab, I set myself a challenge to set up a ring topology with a default gateway on both ends of the ring. My goal is to be able to use any of the PCs to ping out to the internet and still have connection in case one gateway goes down. The PCs are able to ping out, and if I disconnect a link between SW1 or SW4 and R1 or R2 the computer goes to the 2nd uplink, it keeps pinging out to the internet. BUT if I disconnect the link between the cloud and the router (which simulates an ISP going down) the PC looses connection and it doesn't go to the back up router.

Is there a configuration to mitigate this?

Image for a better understanding https://imgur.com/a/TIveVNd



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