> > > Hard to say, but maybe 1500 isn't the right value for the MTU. How are
you
> > > connected to the internet ?
> > >
> > I'm connected to router through ethernet.
>
> And how is the router connected to internet ?

I solved all problems by chanching nic's. But now there is another problem,
netbsd 1.6.1 doesn't support
"Surecom EP-320X-S" nic, is it supported in -current?