Thursday, March 12, 2020

Multihomed BGP w/ another subnet

I just stumbled across something I've never seen or considered before.
I have 2 ISPs, and am running BGP peering to both ISP's with my /24 network.

I just found out that one of the ISP's is sending a /28 network to my peering IP on my BGP router.

Is it even possible to use that subnet if I'm handling my /24 and default routes on the same router?



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