SCO Xenix 286 TCP/IP?

[Andrew R. Large]

I am in the processing of designing a ThinWire Ethernet for our building.
We currently have two Vax 11/730s, an IBM PC/RT, a Tandy 3000 (I think),
and several flavors of PC clone, PC to PC/AT.  We are likely to add a
Sun and an Apollo in the near future.

One of the 730's is running mt Xinu 4.3 BSD.  The other is running VMS 4.7.
The RT is running AIX.  The Tandy is running SCO Xenix 286.

For the VMS machine, I'm looking into the CMU VMS TCP/IP package.  I'm not
sure about the RT yet -- I'm guessing that software is there and I just
need to figure out how to use it.

My big question is ``What do I need in order to get the Tandy on an Ethernet?''
I would assume the 3COM card.  What about software?  Does anyone sell a
reasonably priced TCP/IP package for Xenix 286, with rlogin or telnet and
ftp (like maybe CMU, since I forgot to ask them)?

Advice greatly appreciated ...