6to4 IPv6 problems FreeBSD 6.2 p4

[Ofloo]

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 ?
> 

Using a different default gateway solved this for now, though I don't think
a server should crash if its gateway is in trouble, ..
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