I use a netbsd 1.0-current box as the gateway of my domain.  
I've noticed that we seem to get a lot (~10%) of fragmented
packets from nearby hosts (directly on the other side of our
slip line) but not from more distant hosts.  This fragmentation
does not occur on the gateway itself, only on hosts recieving
forwarded packets from the gateway.

This is either a bug or a misconfiguration on my part.  The
subnet we have trouble with is the 165.227.X.X subnet.
Comments?

atrium% netstat -i
Name  Mtu   Network     Address            Ipkts Ierrs    Opkts Oerrs  Coll
ed2   1500  <Link>0.0.c0.b7.ea.2c           4165     0     4342     0     1
ed2   1500  resort-net  atrium              4165     0     4342     0     1
lo0   32768 <Link>                            49     0       49     0     0
lo0   32768 127         localhost             49     0       49     0     0
sl0   296   <Link>                          1565     0     1052     0     0
sl0   296   scruz-net   atrium              1565     0     1052     0     0
ppp0* 1500  <Link>                             0     0        0     0     0
atrium% ifconfig -a
ed2: flags=9863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,LINK0,MULTICAST>
        inet 165.227.14.1 netmask 0xffffff00 broadcast 165.227.14.255
lo0: flags=8009<UP,LOOPBACK,MULTICAST>
        inet 127.0.0.1 netmask 0xff000000 
sl0: flags=d011<UP,POINTOPOINT,LINK0,LINK2,MULTICAST>
        inet 165.227.14.1 --> 165.227.1.100 netmask 0xffff0000 
ppp0: flags=10<POINTOPOINT>