> >From the first mail you send  I giuess that Linux as a 512 MTU and
> NetBSD a 1500 Byt MTU. On a slow machine this makes a difference.
> Try to set the MTU on NetBSD to a lower value.

And disable the high speed TCP options by adding something like this to
/etc/netstart.local (on any NetBSD host in the local network if the outside
connection is slow):

# ----- Avoid using high speed options over slow links -------
/usr/sbin/sysctl -w net.inet.tcp.rfc1323=0



Martin