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From: leo@SH.CS.NET.UUCP
Newsgroups: comp.protocols.tcp-ip
Subject: (none)
Message-ID: <8704171729.AA05915@ucbvax.Berkeley.EDU>
Date: Fri, 17-Apr-87 12:31:09 EST
Article-I.D.: ucbvax.8704171729.AA05915
Posted: Fri Apr 17 12:31:09 1987
Date-Received: Sat, 18-Apr-87 06:10:57 EST
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Subject: Re: X.25 to Ethernet (TCP/IP) Gateway 
In-reply-to: Your message of Thu, 16 Apr 87 14:13:21 -0700.
             <12295047549.61.TUCKER@SUMEX-AIM.STANFORD.EDU> 
Fcc: outbox
--------

	We need a gateway which will provide for terminal sessions
	between PADs and Hosts on X.25 Public Data Networks and
	Ethernets (using TCP/IP).  We are interested in both turn-key
	black-box schemes and software packages which might allow small
	UNIX machines currently on our Ethernet to perform this
	function.  The additional ability to support multi X.25 ports
	both for backup paths and sub-addressed hosts would be a help.

CSNET distributes under license software which provides a TCP/IP over
X.25 interface.  The software, known as XNI, runs under UNIX on a vax
and currently works with an Interactive Systems Incard X.25 device.
Work is under way to make the software work with ACC X.25 devices.

The software supports TCP/IP over the public data network and enables
the host to act as an IP gateway between other hosts on the PDN and
whatever is behind the host.

In addition to the TCP/IP support, XNI implements PAD functionality.
It can be used as a remote terminal  to connect to another host on the
PDN or to act as a tty port on the gateway host.  To reach other
machines behind the gateway from the PDN, one could either telnet from
the shell or have rlogin be your shell.

More info is available from cic@sh.cs.net

Leo Lanzillo
leo@sh.cs.net