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Date: Sun, 24 Jul 2011 11:40:35 -0400 (EDT)
From: Jay Rouman <jsr@....edzone.net>
To: Eric Dumazet <eric.dumazet@...il.com>
CC: netdev@...r.kernel.org, davem@...emloft.net
Subject: Re: LInux kernel 3.0 sit creation bug report
I got the route2 configuration to work. Sorry for the bother. There
does seem to be a change in behavior as noted between 2.6.39 and 3.0
when using ifconfig and sit0. Perhaps this was intended.
--Jay Rouman
> Le samedi 23 juillet 2011 ? 12:27 -0400, Jay Rouman a ?crit :
> > Kernel 3.0 (release version)
> > Summary: sit tunnel creation fails with "No buffer space available"
> >
> > Example:
> >
> > icebox:/home/u/jsr(3)# /sbin/ip tunnel add sit0 mode sit local 216.111.203.89 remote 209.51.18.1 ttl 255
> > add tunnel sit0 failed: No buffer space available
> >
> > icebox:/home/u/jsr(8)# /sbin/ifconfig sit0 inet6 tunnel ::209.51.18.1
> > SIOCSIFDSTADDR: No buffer space available
> >
> > Notes:
> >
> > Oddly, the ifconfig example creates a working sit0. The "ip" example
> > does not. The problem existed in rc1 but unfortunately I did not test
> > sit creation then. This was discovered when I upgraded a machine with
> > an HE tunnel to the 3.0 kernel. I am happy to do further testing or
> > provide whatever additional info I can.
> >
>
> I believe you use a deprecated (~10 years ago ?) way to setup your
> tunnel, its not a linux-3.0 new behavior.
>
> sit0 is reserved (fall back tunnel), you should use a different name.
>
> Try :
>
> # ip tunnel add aster mode sit local 216.111.203.89 remote 209.51.18.1 ttl 255
> # ifconfig aster up
>
> # ip tunnel
> sit0: ipv6/ip remote any local any ttl 64 nopmtudisc
> aster: ipv6/ip remote 209.51.18.1 local 216.111.203.89 ttl 255
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