>After adding an IP alias, my  HP Router (27289A, 240/FR) rejects arp
>packets form the NetBSD machine with 'Invalid ARP Source: 10.0.0.33 on
>204.29.161.41' and subsequently refuses to talk to it. 

The HP router is complaining that two IP addresses map to the same arp
address?  If so, it is broken I believe.  Since the other machine has
no problems, that's my guess.

However, I didn't even know HP makes routers, so I may be wrong.

--Michael

--
Michael Graff <explorer@flame.org>        NetBSD is the way to go!
PGP key on a key-server near you!         Netshade the world!