I was under the impression that eBGP peers ALWAYS set the next hop IP attribute to itself. I thought that iBGP was the only time the "next-hop-self" command was even valid. I know, however, it can be configured with external BGP peers, but I thought it was useless.
I read somewhere that this was not the case with partial mesh NBMA networks.
Am I right or wrong about eBGP peers always setting the next hop attribute to themselves?
This is one of the cases where you need to set next-hop-self even if you have a EBGP session. THe media used is NBMA (framerelay for example). This occurs, usually in partial mesh NBMA networks. Check the link, and get back wi th us if you have any questions.
I guess I have never run into this issue because we don't use that type of environment for our customer's network. If we are using ATM or Frame Relay, for example, we usually connect them via sub-interface point-to-point interfaces thus eliminating this problem.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.