Spoiler alert: Do not read ahead if you have not done this lab/question yet! Ticket 5 is as follows: "The BGP peering between R1 and R2/R4 is flapping and needs to be stabilized. Please correct the problem." >From my first look at R2 and R4, it appears that they are learning about >1.1.1.1 (update source) through BGP which would of course cause problems. The >solution is to remove network 1.1.1.1 mask 255.255.255.255 from router 1, but >to me this seems like it would go against "keep the spirit of the config". What I did on R2 and R4: router bgp 2456 network 1.1.1.1 mask 255.255.255.255 backdoor This makes the preferred route to 1.1.1.1 over OSPF instead of BGP by making the distance of the 1.1.1.1 route 200 and keeps the config intact. Is this a better/worse solution? Do I not understand the function of the BGP backdoor? thanks, Nick _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
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