🚀 go-pugleaf

Recently we discovered strange behaviour in 9.0(1).
We route tcp/ip decnet and appletalk and bridge LAT in a 
newly installed MGR. 
ARP requests done on lan-s connected to this router are
FORWARDED to all interfaces! Even worse, since they are
forwarded to a AGS with 8.3(3), the AGS has no way of
protecting himself, but instead the AGS will put the ARP-s
to all of hi's interfaces. In one case he substituded the
original ip-address with the AGS ip-address.

Looking on the faulty MGS with 'debug arp' shows:
ARP req filtered src 131.97.100.21 0800.0101.68c1, dst 131.97.21.15 0000.0000.0000 wrong cable
ARP req filtered src 131.97.100.23 0800.200f.2991, dst 131.97.23.11 0000.0000.0000 wrong cable
IP ARP: rcvd req src 131.97.100.26 0800.0101.6e3d, dst 131.97.100.99

The 'wrong cable' is an indication of the problem.

A 'fix' is to define a output-type list that explicity defines 
which types are to be forwarded(and not including ARP).
-
Peter Hakanson  VolvoData Dep 2230 phone +46 31 66 74 27