[Xorp-users] [PATCH] IPv4 multicast limits on BSD-derived machines

[Bruce M Simpson]

Hi all,

Anyone who plans to run OSPF on a BSD-derived machine (FreeBSD, NetBSD,
OpenBSD, Darwin/MacOS X) may wish to take a look at this kernel patch
for FreeBSD 6.1:
	http://people.freebsd.org/~bms/ipmaxgroups.diff

The BSD IPv4 stack has a limitation of 20 groups-per-interface-per-socket.
Various individuals ran into this limit when running OSPF on a machine
with 20 or more interfaces due to how the group memberships work.

This patch removes this limitation by dynamically expanding the vector
holding the memberships.

Regards,
BMS