IPv6: No route to host

[Jurjen Oskam <jurjen_(_at_)_stupendous_(_dot_)_org>]

Hi,

This one is primarily for the archives. I'm using OpenBSD 3.6-stable.

When you're playing with IPv6, perhaps with or without an IPv6 in
IPv4-tunnel, and you get errors like "sendmsg on rl1: No route to
host", check your pf rules. And if you're certain that your pf rules
are OK, and you still get the errors, check the pf rules again. Only
then check your routing tables.

Don't block link-local or linklocal multicast addresses (or be prepared
for rtadvd errors). Make sure you don't block anything from the
IPv6-in-IPv4 tunnel. You get the picture. :-)

-- 
Jurjen Oskam