Re: BGP :- Why are recvd routes being re-advertised back ?
Hi. My guess is that you are receiving that route from 2 EBGP sources in the same AS probably.
show ip bgp and see if it's coming from 2 sources.
If it does and you have no as path filtering or any other type of filtering you are going to advertise that to the neighbor that you did not receive the route from, even if it's in the same AS as the one you received it from.
That neighbor will receive the route, look at the AS PATH and will not install it in the bgp/routing table if it has the same AS as it's own AS in the path.
Remember when "YOU" send the route back upstream there is no loop yet. The AS path looks normal until it hits the upstream router.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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