From owner-freebsd-questions  Wed Jan 21 07:13:01 1998
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Received: (from majordom@localhost)
          by hub.freebsd.org (8.8.8/8.8.8) id HAA01251
          for questions-outgoing; Wed, 21 Jan 1998 07:13:01 -0800 (PST)
          (envelope-from owner-freebsd-questions@FreeBSD.ORG)
Received: from awfulhak.org (awfulhak.demon.co.uk [158.152.17.1])
          by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id HAA01217
          for <freebsd-questions@FreeBSD.org>; Wed, 21 Jan 1998 07:12:49 -0800 (PST)
          (envelope-from brian@Awfulhak.org)
Received: from gate.lan.awfulhak.org (localhost [127.0.0.1])
	by awfulhak.org (8.8.7/8.8.7) with ESMTP id OAA14947;
	Wed, 21 Jan 1998 14:53:26 GMT
	(envelope-from brian@Awfulhak.org)
Message-Id: <199801211453.OAA14947@awfulhak.org>
X-Mailer: exmh version 2.0.1 12/23/97
To: Brian Reichert <reichert@numachi.com>
cc: freebsd-questions@FreeBSD.ORG
Subject: Re: PPP and IP forwarding 
In-reply-to: Your message of "Wed, 21 Jan 1998 01:26:14 EST."
             <19980121012614.53293@numachi.com> 
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Date: Wed, 21 Jan 1998 14:53:26 +0000
From: Brian Somers <brian@Awfulhak.org>
Sender: owner-freebsd-questions@FreeBSD.ORG
Precedence: bulk

> On Tue, Jan 20, 1998 at 10:35:47PM +0000, Brian Somers wrote:
> > Have you only got one IP number ?  If so, you'll need to either run 
> > ppp with the -alias switch or ``alias enable yes'' in your ppp.conf 
> > file.
> 
> Nope, I got me a whole class C net here.  And I'm _not_ running
> routed, or any weird IP aliasing packages.
> 
> > > I'm *this* close to building the bpf device, to try to see if
> > > packets are even getting to the ppp process....
> > 
> > You can always ``set log +tcp/ip''.  I'm assuming you've got a recent 
> > version of ppp (see http://www.FreeBSD.org/~brian).
> 
> Actaully, I am trying a recent version: ppp-971105.  According to
> the manpage, the log option was supposed to be 'TCP/IP', which
> didn't seem to do anything.  But I tried your suggestion above
> [lower case], and got some results:

It can be upper or lower case......

> My netblock is 198.175.254.0.  My gateway is, as by convention,
> 198.175.254.1.  I tried telnetting out from another of my boxes
> (198.175.254.7) offsite, which failed with a timeout.
> 
> # grep 254.7 /var/log/ppp.log
> Jan 21 01:11:05 numachi ppp[12123]: TCP/IP: OUT TCP: 198.175.254.7:4714 ---> 199.0.65.125:23 SYN  seq:21e2ce00  ack:0 (0/40)
> Jan 21 01:11:11 numachi ppp[12123]: TCP/IP: OUT TCP: 198.175.254.7:4714 ---> 199.0.65.125:23 SYN  seq:21e2ce00  ack:0 (0/40)
> Jan 21 01:11:23 numachi ppp[12123]: TCP/IP: OUT TCP: 198.175.254.7:4714 ---> 199.0.65.125:23 SYN  seq:21e2ce00  ack:0 (0/40)
> Jan 21 01:11:47 numachi ppp[12123]: TCP/IP: OUT TCP: 198.175.254.7:4714 ---> 199.0.65.125:23 SYN  seq:21e2ce00  ack:0 (0/40)

Ah - this is the result of the `set log +tcp/ip' :-)

> It _looks_ to me that my PPP process _is_ getting the packets, but
> never sees anything come back.  I'll poke at my ISP to double-check
> thier routing, but if have any further suggestions, by all means,
> please send 'em down...

Yep.  Looks like a problem on their side.

> -- 
> Brian Reichert			          		  reichert@numachi.com
> 37 Crystal Ave. #303
> Derry NH 03038-1713 USA			Intel architecture: the left-hand path

-- 
Brian <brian@Awfulhak.org>, <brian@FreeBSD.org>, <brian@OpenBSD.org>
      <http://www.Awfulhak.org>
Don't _EVER_ lose your sense of humour....