04-30-2014 06:50 PM
I updated some routers to the 5.6.0c and after this many BGP sessions don't got up. After hours trobleshooting this issue i found a pattern.
Seems that packets get in to a IPv6 address on a loopback interface with destination to port 179 is dropped. This is a big problem because a sessions between tow routers with this behavior is impossible do get up. A another point is that one session with Juniper router is up because the accept packets to 179/tcp.
I'm doing something wrong or it is in fact a bug? Any else saw something near of this behaivior?