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Date:      Sun, 30 Aug 1998 17:06:28 +0000
From:      Nicolas Souchu <Nicolas.Souchu@prism.uvsq.fr>
To:        freebsd-questions@FreeBSD.ORG
Subject:   can't connect to www.freebsd.org (fwd)
Message-ID:  <19980830170628.16701@breizh.prism.uvsq.fr>

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Nicolas.Souchu@prism.uvsq.fr
FreeBSD - Turning PCs into workstations - http://www.FreeBSD.org

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Date: Sun, 30 Aug 1998 17:03:18 +0000
From: Nicolas Souchu <Nicolas.Souchu@prism.uvsq.fr>
To: freebsd-question@freebsd.org
Cc: Nicolas.Souchu@prism.uvsq.fr
Subject: can't connect to www.freebsd.org
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Hi!

under -current... maybe not a freebsd-question related question
but I prefer asking here first before bothering hackers ;)

I need help. My FreeBSD box refuses to connect to freefall.

This is not an ISP problem since all is ok under Win$

I think rather of a local config problem... but _really_ can't find it :(

I use ppp other tun. Some packets are transmitted from here to freefall
and from freefall to here, then nothing: the local network stack seem to ignore
incoming packets from freefall then tries again and again to get freefall's
ack.

Note: boot sequence says my kernel has firewall functionalities with
ip services disabled...

I don't have this problem with other web sites.

Any Idea? tcpdump dumps would be usefull?

tcpdump: listening on tun0
17:01:41.304002 rtc105.reseau.uvsq.fr.1204 > soleil.uvsq.fr.domain: 6471+ A? www.freebsd.org. (33)
17:01:41.467496 rtc105.reseau.uvsq.fr.1205 > soleil.uvsq.fr.domain: 39176+ (42)
17:01:41.536592 soleil.uvsq.fr.domain > rtc105.reseau.uvsq.fr.1204: 6471 2/5/5 (274)
17:01:41.539212 rtc105.reseau.uvsq.fr.1064 > freefall.FreeBSD.ORG.http: S 1404629824:1404629824(0) win 16384 <mss 1460,nop,wscale 0,nop,nop,timestamp 14777 0,nop,nop,ccnew[|tcp]> (DF)
17:01:41.686591 soleil.uvsq.fr.domain > rtc105.reseau.uvsq.fr.1205: 39176* 1/4/4 (262)
17:01:41.687327 rtc105.reseau.uvsq.fr.1206 > soleil.uvsq.fr.domain: 39177+ (43)
17:01:41.916688 soleil.uvsq.fr.domain > rtc105.reseau.uvsq.fr.1206: 39177* 1/4/4 (277)
17:01:41.926735 freefall.FreeBSD.ORG.http > rtc105.reseau.uvsq.fr.1064: S 2135177733:2135177733(0) ack 1404629825 win 17280 <mss 1460,nop,wscale 0,nop,nop,timestamp 5472802 14777,nop,nop,cc[|tcp]> (DF)
17:01:41.926840 rtc105.reseau.uvsq.fr.1064 > freefall.FreeBSD.ORG.http: . ack 1 win 17280 <nop,nop,timestamp 14778 5472802,nop,nop,cc 42> (DF)
17:01:41.937024 rtc105.reseau.uvsq.fr.1064 > freefall.FreeBSD.ORG.http: P 1:395(394) ack 1 win 17280 <nop,nop,timestamp 14778 5472802,nop,nop,cc 42> (DF)
17:01:42.929010 rtc105.reseau.uvsq.fr.1207 > soleil.uvsq.fr.domain: 39178+ (44)
17:01:43.146643 soleil.uvsq.fr.domain > rtc105.reseau.uvsq.fr.1207: 39178 1/3/3 (216)
17:01:44.526588 freefall.FreeBSD.ORG.http > rtc105.reseau.uvsq.fr.1064: S 2135177733:2135177733(0) ack 1404629825 win 17280 <mss 1460,nop,wscale 0,nop,nop,timestamp 5472807 14777,nop,nop,cc[|tcp]> (DF)
17:01:44.526687 rtc105.reseau.uvsq.fr.1064 > freefall.FreeBSD.ORG.http: . ack 1 win 17280 <nop,nop,timestamp 14783 5472807,nop,nop,cc 42> (DF)
17:01:44.546453 rtc105.reseau.uvsq.fr.1064 > freefall.FreeBSD.ORG.http: P 1:395(394) ack 1 win 17280 <nop,nop,timestamp 14783 5472807,nop,nop,cc 42> (DF)
17:01:50.506664 freefall.FreeBSD.ORG.http > rtc105.reseau.uvsq.fr.1064: S 2135177733:2135177733(0) ack 1404629825 win 17280 <mss 1460,nop,wscale 0,nop,nop,timestamp 5472819 14777,nop,nop,cc[|tcp]> (DF)
17:01:50.506794 rtc105.reseau.uvsq.fr.1064 > freefall.FreeBSD.ORG.http: . ack 1 win 17280 <nop,nop,timestamp 14795 5472819,nop,nop,cc 42> (DF)
17:01:50.546515 rtc105.reseau.uvsq.fr.1064 > freefall.FreeBSD.ORG.http: P 1:395(394) ack 1 win 17280 <nop,nop,timestamp 14795 5472819,nop,nop,cc 42> (DF)
17:02:02.506814 freefall.FreeBSD.ORG.http > rtc105.reseau.uvsq.fr.1064: S 2135177733:2135177733(0) ack 1404629825 win 17280 <mss 1460,nop,wscale 0,nop,nop,timestamp 5472843 14777,nop,nop,cc[|tcp]> (DF)
17:02:02.506949 rtc105.reseau.uvsq.fr.1064 > freefall.FreeBSD.ORG.http: . ack 1 win 17280 <nop,nop,timestamp 14819 5472843,nop,nop,cc 42> (DF)
17:02:02.546639 rtc105.reseau.uvsq.fr.1064 > freefall.FreeBSD.ORG.http: P 1:395(394) ack 1 win 17280 <nop,nop,timestamp 14819 5472843,nop,nop,cc 42> (DF)
17:02:15.210145 rtc105.reseau.uvsq.fr.1064 > freefall.FreeBSD.ORG.http: F 395:395(0) ack 1 win 17280 <nop,nop,timestamp 14845 5472843,nop,nop,cc 42> (DF)
17:02:15.506915 freefall.FreeBSD.ORG.http > rtc105.reseau.uvsq.fr.1064: . ack 1 win 17280 <nop,nop,timestamp 5472869 14777,nop,nop,cc 3936557> (DF)

-- 
Nicolas.Souchu@prism.uvsq.fr
FreeBSD - Turning PCs into workstations - http://www.FreeBSD.org


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