cvs commit: src/sys/net if_disc.c
Bruce M. Simpson
bms at FreeBSD.org
Fri Nov 2 14:13:28 PDT 2007
Yar Tikhiy wrote:
> yar 2007-10-27 19:57:41 UTC
> FreeBSD src repository
> Modified files:
> sys/net if_disc.c
> Add a comment explaining why disc(4) bears the IFF_LOOPBACK flag.
> It should be the final follow-up to an old yet unfinished discussion
> on whether IFF_LOOPBACK is necessary for disc(4) and why.
Thanks for doing this.
It is also worth noting that blackhole routes in the forwarding table
rely upon there being a lo(4) interface in the system unless fast
forwarding is enabled. This is a 'gotcha' which people may not be aware
of, though I think I may have commented it somewhere...
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