Path: utzoo!mnetor!uunet!lll-winken!lll-tis!ames!ucsd!sdcsvax!ucsdhub!hp-sdd!hplabs!hpda!hpcupt1!hpcuhb!hpindda!dwall
From: dwall@hpindda.HP.COM (Darren Wall)
Newsgroups: comp.protocols.tcp-ip
Subject: IP/X.25 Call User Data ...
Message-ID: <6200003@hpindda.HP.COM>
Date: 1 Apr 88 19:09:20 GMT
Organization: HP Technical Networks, Cupertino, Calif.
Lines: 14


Is it an "accepted practice" to use 0xCC in the first byte of
Call User Data in an X.25 CALL REQUEST Packet for routing IP
data over an X.25 Link?  I know that for DDN Standard Services
it's required, but I had thought that everyone did it whether
DDN Standard is being requested or not.

The reason that I ask is I noticed that Cisco Box that we have
does not use any Call User Data in it's CALL REQUEST Packet.

The Cisco I am using is:
System Bootstrap, Version 3.0(3), copyright (c) 1987 by cisco Systems, Inc.
ASM/AGS System, Version 6.1(343), compiled Wed 11-Nov-87 15:58

Darren Wall