Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!usc!rpi!zaphod.mps.ohio-state.edu!van-bc!ubc-cs!mprgate.mpr.ca!mprgate.mpr.ca!parker
From: parker@mprgate.mpr.ca (Ross Parker)
Newsgroups: comp.protocols.tcp-ip
Subject: SLIP and IP routing problem
Message-ID: <1991Mar11.190228.15146@mprgate.mpr.ca>
Date: 11 Mar 91 19:02:28 GMT
Sender: news@mprgate.mpr.ca
Reply-To: parker@mprgate.mpr.ca (Ross Parker)
Organization: MPR Teltech Ltd.
Lines: 65

Hi...

I'm having a routing problem with the following configuration:

2 Sun 3/260 (one with SunOS 4.0.3, the other with SunOS 4.1),
	one here in Vancouver, the other in Ottawa connected
	with a 4800 baud dedicated line
Slip 4.0
gated 1.9.1.7

I can get the two systems talking to each other just fine (with or
without gated running). However, I'm trying to configure the
network (and gated) so that other systems on my local network can
see the system in Ottawa. I'm not having much luck.

Currently, the Ottawa systems and the systems here are using the
same IP address space - both in the class B address '134.87'. I can
understand routing failing with this configuration... with only one
network address, there's nothing to route *to*. I have, however,
tried setting up the SLIP line with it's own address (we have a
class C address at our disposal, and the route to Ottawa still isn't
reachable.

Here's a diagram of the situation:

         Ottawa                                 Vancouver
        'mprott'                                'mprgate'
    ------------------                     ------------------
    |                |                     |                |
    |134.87.137.1    |                     |   134.87.131.12|
 ___|______^         |                     |          ^_____|___
    |                |                     |                |
    |      192.67.9.1|   Slip line         |192.67.9.13     |
    |          ^_____|_____________________|______^         |
    |                |                     |                |
    ------------------                     ------------------

The ethernet interfaces are on 134.87..... The slip interfaces are
the 192.67.9 addresses, and are named mprott_slip and mprgate_slip

I have added a static route to the Ottawa office through the slip line
(e.g. 'route add mprott_slip mprgate_slip 1'). Gated is running on both
ends as 'RIP supplier' (I've tried 'RIP yes' and 'RIP pointtopoint' as
well), and I can see RIP traffic going across the line. None of the
other systems in my local ethernet, however, ever see mprott_slip, even
if I add a static route to it through mprgate_slip. In fact, I have to
add a static route to mprgate_slip (through mprgate) before the
Vancouver end of the slip line is visible from my other systems. Gated
has both ends of the SLIP line set up in 'trustedripgateways' and in
'sourceripgateways'.

Can anyone suggest what I may be doing wrong? I'm hesitant to try
installing the class 'C' address on all systems in Ottawa (because it's
a pain to do) until I know that that'll solve my problem. I'm hoping
that I've just configured gated incorrectly.

Thanks,

-- 
Ross Parker			| Why do they put me down?
				| Make out that I'm a clown?
parker@mprgate.mpr.ca		| I drink scotch whisky all day long
uunet!ubc-cs!mprgate!parker	| Yeah I'm gonna save my money
				| (gonna put it all away...)
(604)293-5495			| 'Cause I'm a Scotsman