Hi Hemant, > And the problem with eBGP is? If a BGP control message is initiated by > one of the two routers and sent to the other router, no TTL is > decremented when the other routers receives this message. Only if the > control is forwarded by the receiving router out any interface then the > router decrements the TTL.
Sorry for catching up late, but, no...! If the eBGP peer uses loopback address (/32(IPv4) | /128(IPv6)) for example, then TTL is decremented by the receiving router before reaching to the peer address. So we need to configure eBGP as "multihop" in this case. (Reference) http://www.cisco.com/en/US/tech/tk365/technologies_configuration_example 09186a0080093f25.shtml --------------------------- router bgp 300 neighbor 2.2.2.2 remote-as 400 neighbor 2.2.2.2 ebgp-multihop 2 !--- This command changes the ttl value in !--- order to allow the packet to reach the !--- external BGP peer which is not directly !--- connected or is using an interface other !--- than the directly connected interface. --------------------------- Miya -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
