Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site utai.UUCP
Path: utzoo!utcsri!utai!lamy
From: lamy@utai.UUCP (Jean-Francois Lamy)
Newsgroups: net.mail
Subject: Driving on the left side of the road :-)
Message-ID: <2279@utai.UUCP>
Date: Mon, 8-Sep-86 10:42:45 EDT
Article-I.D.: utai.2279
Posted: Mon Sep  8 10:42:45 1986
Date-Received: Mon, 8-Sep-86 11:39:52 EDT
Organization: CSRI, University of Toronto
Lines: 65


I am trying to communicate with a site in Britain, and I think I need
a basic network topology briefing

The message is destined to site psg.npl.co.uk 

Our mailer sends mail in the uk domain to cs.ucl.ac.uk via X.25.  If I
remember well, that machine is the gateway to the uk domain, where address
conversion to the "programming-language-style domains" takes place

But the JANET address of the site I am trying to reach is
JANET:          jrp%psg.npl.co.uk@uk.ac.ukc
which seems to indicate that JANET and the uk domain are not one and the same
(could the uk in cs.ucl.ac.uk be an internetism while the one in ac.ukc.uk is
a janetism?)

Is the real address
jrp%psg.npl.co.uk%ukc.ac.uk@cs.ucl.ac.uk
-- assuming we have a direct link to cs.ucl.ac.uk?
No joke?

Is this the same kind of situation where an arpa site with a .edu name
must go through csnet-relay explicitly to reach ai.toronto.edu on CSNet?

Hoping for the day where a machine will have a UNIQUE id and that gateways
will work...

Jean-Francois Lamy
AI Group, Dept of Computer Science     CSNet: lamy@ai.toronto.edu
University of Toronto		       EAN:   lamy@ai.toronto.cdn
Toronto, ON, Canada M5S 1A4	       UUCP:  lamy@utai.uucp


------- Forwarded Messages

Date:    Mon, 8 Sep 86 05:27:10 edt
Subject: Failed Mail Transfer

Date:     Mon, 8 Sep 86 2:25:21 BST

Message not delivered to address: jrp@psg.npl.co.uk

The reason for the failure was:
    [USER] (BHST) Unknown host/domain name in "jrp@psg.npl.co.uk"

[ and so on...]

------- Message 2

[exerpts from the signature of the message I wish to reply to]

UUCP: 		jrp%nplpsg.uucp@mcvax.uucp
		jrp@psg.npl.co.uk
		...mcvax!ukc!nplpsg!jrp
ARPA:		jrp%nplpsg.uucp@seismo.css.gov
JANET:		jrp%psg.npl.co.uk@uk.ac.ukc

------- End of Forwarded Messages

-- 

Jean-Francois Lamy
AI Group, Dept of Computer Science     CSNet: lamy@ai.toronto.edu
University of Toronto		       EAN:   lamy@ai.toronto.cdn
Toronto, ON, Canada M5S 1A4	       UUCP:  lamy@utai.uucp