ipv4 multicast broken in -current

[Quentin Garnier]

Hi,

Jared McNeill privately reported an issue with ipv4 multicast on
-current. After some light debugging, I tend to believe rev 1.180 of
sys/net/ip_output.c is the culprit, and naively suggest the attached
patch, which restore a chunk of code that David removed.

David, do you think this is the right thing to do? I'm not able to
test just right now, but will be a bit later.

[Quentin Garnier]

Post by Quentin Garnier
Hi,
Jared McNeill privately reported an issue with ipv4 multicast on
-current. After some light debugging, I tend to believe rev 1.180 of
sys/net/ip_output.c is the culprit, and naively suggest the attached
patch, which restore a chunk of code that David removed.
David, do you think this is the right thing to do? I'm not able to
test just right now, but will be a bit later.

I've committed a different fix, although it's pretty much equivalent in
the end.