6to4 IPv6 problems FreeBSD 6.2 p4

Ofloo bulk at ofloo.net
Wed Jun 13 06:28:27 UTC 2007



Ofloo wrote:
> 
> I use 6to4 IPv6 tunnels, when using applications which use a lot of
> bandwidth (400kb/s), it is not that much but still, the server gets in
> trouble.
> 
> May 28 19:51:21 narf kernel: arpresolve: can't allocate route for
> 192.88.99.1
> May 28 19:51:22 narf kernel: arpresolve: can't allocate route for
> 192.88.99.1
> May 28 20:06:15 narf kernel: arpresolve: can't allocate route for
> 192.88.99.1
> May 28 20:09:02 narf kernel: arpresolve: can't allocate route for
> 192.88.99.1
> 
> The default route does exist though:
> 
> narf# netstat -rn -f inet6 | grep default
> default                           2002:c058:6301::              UGS       
> stf0
> narf#
> 
> when this happens it takes about 10 mins and my ssh IPv6 ssh session is
> closed, after keeping this up for longer the server crashes, .. any
> suggestions ?
> 

I noticed that when I'm compiling, and a lot of data comes on my remote
shell screen (which is connected through ipv6) that the connection is
terminated, can any one verrify !?

6to4 has prefixlen 16 so it is within the broadcast and it's not using the
routes at all when it disconnects, though this doesn't result into a crash,
of the server.
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