Chris ponders:
> Inbound Ethernet may not work[...]

> Make sure that the machine you communicate with has both Ethernet and
> 802.3 enabled, OR the HOSTS.NET.SYS file has the IP address for the other
> machine, OR the network directory has an entry for the other machine.

A wild-ass guess would be that inbound Ethernet frames are being responded
to with 802.3 frames, which will work fine unless the originating system is
only capable of handling Ethernet.

This has been a problem in the past as well I believe.

G.