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Date:      Tue, 14 Dec 1999 15:38:08 GMT
From:      kh@mogami-wire.co.jp
To:        FreeBSD-gnats-submit@freebsd.org
Subject:   kern/15475: pppd(8) sets the Source Address field of IP Header to 0.0.0.0
Message-ID:  <199912141538.PAA01014@sf.mogami-wire.co.jp>

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>Number:         15475
>Category:       kern
>Synopsis:       pppd(8) sets the Source Address field of IP Header to 0.0.0.0
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Dec 13 23:20:01 PST 1999
>Closed-Date:
>Last-Modified:
>Originator:     Kouichi Hirabayashi
>Release:        FreeBSD 3.3-RELEASE i386
>Organization:
Mogami Wire & Cable Corp.
>Environment:
	FreeBSD-3.3R i386

>Description:
	pppd(8) sets the Source Address field of IP Header to 0.0.0.0
	but negotiated local IP address.

>How-To-Repeat:

	By monitoring with 'tcpdump -i ppp0', do

	  /usr/sbin/pppd connect 'chat "" "ATD<tel_no>" "CONNECT"' \
		/dev/cuaa0 user <user>

	to some dial-up ppp server (whitch requests CHAP authentification)
	with following file.

	--- /etc/ppp/options ---
	38400
	modem
	crtscts
	debug
	noipdefault
	ipcp-accept-local
	------------------------

	--- /etc/ppp/chap-secrets ---
	<user>  * <password> *
	-----------------------------

	Typycal dump list is as follows.

	14:50:20.299715 0.0.0.0.1034 > 10.0.5.195.5020: S \
		1510878817:1510878817(0) win 16384 <mss 1484> (DF)
	..

	On FreeBSD-2.2.8R, typical dump list is as follows.

	11:04:52.633283 202.23.252.137 > 10.0.5.195.5020: S \
		250102342:250102342(0) win 16384 <mss 1484,nop,wscale \
		0,nop,nop,timestamp 2628 0,nop,nop,ccnew[|tcp]> (DF)
	..


>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted:


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