Path: utzoo!attcan!uunet!husc6!rutgers!ucsd!ucbvax!M5.SDSC.EDU!gkn
From: gkn@M5.SDSC.EDU (Gerard K. Newman)
Newsgroups: comp.protocols.tcp-ip
Subject: Re:  TCP/IP and VMS
Message-ID: <880723194329.25000102@M5.Sdsc.Edu>
Date: 23 Jul 88 19:43:29 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 38


	From:	 TENCATI@gpvax.JPL.NASA.GOV
	Subject: TCP/IP and VMS
	Date:	 Fri, 22 Jul 88 09:51:06 PDT

	Is there a product, or a way under VMS to get the source address of a TCP/IP
	connection entered into the accounting files?

Ron:

What I did here was to run a program in SYS$SYLOGIN which pops into kernel mode
and plugs CTL$T_NODEADDR with the remote IP address of the connection.  Handily,
CTL$T_NODEADDR is a counted string (believe it or not), and can accomodate a 4
byte IP address instead of the usual 3 byte DECnet address.  While I'm in kernel
mode I also create the job-wide logical names SYS$REM_NODE and SYS$REM_ID.

A small patch to ACC.EXE allows it to display IP addresses in hex (but it has
the side effect of displaying DECnet addresses the same way).

I run the SRI Multinet software here.  I notice from your message header that
you have the Excelan software;  I can send you the code I use, but you'll have
to change it somewhat to do whatever magic is necessary to fetch the IP address
from an inbound terminal connection, as it is doubtless stored in a different
place.

Regards,

gkn
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