track of on which interfaces joins have occurred. This is complicated
by the possible lack of a clear behavior spec on whether interfaces
keep their joined group lists across a down/up/down transition. (On
NetBSD, they do.)
2004-01-03 Greg Troxel <gdt@ahi.ir.bbn.com>
* ripng_interface.c (ripng_multicast_join): If IPV6_JOIN_GROUP
returns EADDRINUSE, consider the join successful. This happens
when an interface goes down and comes back because
ripng_multicast_leave does not invoke the LEAVE_GROUP operation if
the interface is down. Solves problem of ripng stopping working
on an interface which goes down and then comes back up (on NetBSD).
Add the 'no interface' command to all the daemons and vtysh. now it's
possible to delete interface from routeing daemons as well only if it
doesn't exist in os.
http://hasso.linux.ee/zebra/ht-no_interface_fix.patch
