*BSD News Article 68336


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From: "Charles F. Randall" <cfr@infoborg.dmacc.cc.ia.us>
Subject: Win95 & FreeBSD2.1R vs 2.1R user-PPP server
Date: Sat, 11 May 1996 10:23:40 -0500
Message-ID: <199605111523.KAA06555@infoborg.dmacc.cc.ia.us>
Lines: 59
Reply-To: "Charles F. Randall" <crandall@dmacc.cc.ia.us>
Organization: Chardos Mail2News Gateway

Background: 

At the time of the last FreeBSD 2.1 snap (fall 1995), I configured a
2.1-snap machine in my office as a user-ppp server. At the same time,
I configured my dual-boot 2.0.5R/Win95 machine at home for PPP (with a
static IP address) using the built-in dial-up networking for Win95 and
user-ppp for FreeBSD. 

This worked just great (and I felt triumphant over a co-worker who has
a $1200 Shiva Net modem for PPP in his office). I even documented the
process and sent the results to doc@freebsd.org to be added to the
FreeBSD Handbook (which doesn't cover a user-ppp server).

Foreground(?):

I decided to upgrade both the machines at work and at home to
2.1R. Diligently following my own instructions (and using the old
configuration files as a second reference), I re-configured the
user-PPP server at work and the user-ppp client at home. The server is
configured for proxy arp and ip-forwarding.

The Win95 client works. The FreeBSD client doesn't. Grr.

The PPP link is established. Analyzing the ppp.log file on the server
shows almost identical connections between the Win95 connection and
the FreeBSD connection.

Upon further investigation (scripts running on the server periodically
checking things like arp entries, routing tables, etc.) everything
seems to be configured correctly. However ...

>From home, I try to ping the ppp server (always using IP addresses)
and the send light on my modem flashes - nothing comes back. From the
server, I try to ping my home machine and the recv light flashes -
nothing is sent back.

Using the same user-ppp client configuration , I can connect to my
co-worker's Shiva Net-modem and everything works great. So much for
that triumphant feeling. :^(

The routing table on the FreeBSD client is the same when connected to
either the Shiva Net-modem or the FreeBSD user-ppp server.

So, did something in the proxy arp, ip-forwarding, or user-ppp code
change between the last 2.1 snap and 2.1R? I'm going crazy trying to
figure this out.

Any suggestions would be greatly appreciated. I can provide extensive
information to anyone willing to look at it.

-Randy



-- 
Charles F. Randall                 E-mail: crandall@dmacc.cc.ia.us
UNIX Systems Programmer            Voice:  (515) 965-7057
Perl Hacker - Powered by FreeBSD!  FAX:    (515) 965-7305