Hi, OpenBSD-current amd64 from around march, 20th.
Next to a reboot, OpenBGP had a problem validating NextHops : Nexthop State x.x.x.105 invalid vlan97 UP, Ethernet, no carrier, 100 MBit/s I had about 30 addresses on different vlans in this case. This resulted in the BGP session being up but routes were not valid, thus not installed. I tried to "ifconfig down" one vlan and it crashed the whole box. Once rebooted, everything was fine. There is two points about this : - Why is this happening ? What can I do to avoid this and/or get back into business without crashing the system ? Could this have to do with the OpenBGP/kroute.c patch sent yesterday ? - Shouldn't OpenBGP drop the session if the nexthop is not valid ? In our case, we do announce another AS behind us. Sessions were up, so I believe routes were announced to everybody. But as nexthop was declared invalid, routes to this AS were not installed. I think this could have created a loop : our upstream provider was sending packets for this customer's routes. As we hadn't routes installed for customer's prefix, we were sending back the packets to upstream ... BR, -- Sylvain COUTANT ADVISEO http://www.adviseo.fr/ http://www.open-sp.fr/
