TCP/IP under IBM Xenix 2.0

[David Brown]

> I have a need to connect several IBM AT's and Compaq 286's, running IBM
> Xenix 2.0, to a TCP/IP Ethernet.  I am looking for packages which do this.
> The only one that I have found so far comes from Network Research Corp.
> 
> Are there any others?

I've heard of 2 companies that sell TCP/IP for Xenix - Excelan and CMC.
Both use on-board processors to handle most of the protocol on the
board, though I believe that Excelan handles more on the board
(including telnet/rlogin processing).  We purchased the Excelan product,
but switched all of our PC's to PCDOS before we tried it out under
Xenix, so I can't relate any experiences.  Before we purchased, we
visited Excelan and saw it running on PC/AT's running Xenix, talking to
VAX 4.2BSD.

With both companies, you get the standard set of utilites (telnet, ftp,
rlogin, rsh, etc.), plus a socket library.  Unfortunately, the Excelan
socket library calls are at the 4.1C level, and so porting programs from
4.2/3 requires modifications.  Also, some utilities that we would like
to use (tftp, remote lpr) are not provided.
CMC claims that their socket library is 4.2-compatible.

We went with Excelan because they're local, they have a good reputation
around here (I know of several other sites using their products), and
they have a broad range of products (including TCP/IP for PCDOS -- CMC's
PCDOS version was still in beta test when we were looking in January).
I talked to one CMC user (for Multibus) who was happy with them as well.

Excelan
2180 Fortune Dr.
San Jose, CA 95131
(408) 434-2300

CMC (Communication Machinery Corporation)
1421 State St.
Santa Barbara, CA 93101
(805) 963-9471

I believe that NRC only makes software (FUSION) and OEM's the hardware
from elsewhere - either 3COM, Excelan, Interlan, CMC or Ungermann-Bass.

-- 
	David Brown	 (415) 945-2199
	Varian Instruments 2700 Mitchell Dr.  Walnut Creek, Ca. 94598
	{ptsfa,lll-crg,zehntel,dual,amd,fortune,ista,rtech,csi}!varian!david