RE: Intermittent connection problems

"Alston, Steve" <[email protected]> Fri, 19 Nov 2004 08:27:32 +1100
Newsgroups gmane.comp.security.firewalls.smoothwall.general
Message-ID <[email protected]>
-----Original Message-----
From: Adam Pavelec [mailto:apavelec-be0aN53zdcR+u43qRgrggVaTQe2KTcn/@public.gmane.org]
Sent: Wednesday, 17 November 2004 12:12 PM
To: Alston, Steve
Cc: [email protected]
Subject: Re: [gpl] Intermittent connection problems


on 11/16/2004 6:56 PM Alston, Steve said the following:

>> connected through an STB to  The ACT's Transact network (My ISP is
Netspeed)

>xDSL, right?

Yes

>Ah!  A belt, *and* suspenders!  Have you tried disabling Zone
>Alarm?

Yes, but no change. |-(


>If Netspeed is a xDSL connection, make sure you look closely
>at the PPP logs.  Mine have been known to show entries such as:

>01:33:06 pppd No response to 3 echo-requests
>01:33:06 pppd Serial link appears to be disconnected.
>01:33:06 pppd tdb_store failed: Corrupt database
...

>If you see similar entries, disconnect your PPPoE connection,
>rename (or remove) /var/run/pppd.tdb and reconnect.  All
>should be well until the DB becomes once again corrupt.

I hadn't noticed anything like this, but I had a look and this is a part of
what I found in the kernel log.


21:08:44 kernel IN=ppp0 OUT= MAC= SRC=220.79.44.113 DST=61.69.2.10
LEN=48 TOS=0x00 PREC=0x00 TTL=107 ID=31269 DF PROTO=TCP SPT=1361
DPT=2745 WINDOW=16384 RES=0x00 SYN URGP=0
21:08:44 kernel IN=ppp0 OUT= MAC= SRC=220.79.44.113 DST=61.69.2.10
LEN=48 TOS=0x00 PREC=0x00 TTL=107 ID=31271 DF PROTO=TCP SPT=1363
DPT=1025 WINDOW=16384 RES=0x00 SYN URGP=0
21:08:50 kernel IN=ppp0 OUT= MAC= SRC=220.79.44.113 DST=61.69.2.10
LEN=48 TOS=0x00 PREC=0x00 TTL=107 ID=34466 DF PROTO=TCP SPT=1363
DPT=1025 WINDOW=16384 RES=0x00 SYN URGP=0
21:08:50 kernel IN=ppp0 OUT= MAC= SRC=220.79.44.113 DST=61.69.2.10
LEN=48 TOS=0x00 PREC=0x00 TTL=107 ID=34468 DF PROTO=TCP SPT=1361
DPT=2745 WINDOW=16384 RES=0x00 SYN URGP=0
21:18:32 kernel IN=ppp0 OUT= MAC= SRC=202.164.242.125 DST=61.69.2.10
LEN=904 TOS=0x00 PREC=0x00 TTL=109 ID=44147 PROTO=UDP SPT=23065 DPT=1028
LEN=884
21:30:32 kernel IN=ppp0 OUT= MAC= SRC=61.254.216.182 DST=61.69.2.10
LEN=48 TOS=0x00 PREC=0x00 TTL=110 ID=33394 DF PROTO=TCP SPT=3460
DPT=2745 WINDOW=16384 RES=0x00 SYN URGP=0
21:30:35 kernel IN=ppp0 OUT= MAC= SRC=61.254.216.182 DST=61.69.2.10
LEN=48 TOS=0x00 PREC=0x00 TTL=110 ID=34495 DF PROTO=TCP SPT=3460
DPT=2745 WINDOW=16384 RES=0x00 SYN URGP=0
21:30:41 kernel IN=ppp0 OUT= MAC= SRC=61.254.216.182 DST=61.69.2.10
LEN=48 TOS=0x00 PREC=0x00 TTL=110 ID=37460 DF PROTO=TCP SPT=3460
DPT=2745 WINDOW=16384 RES=0x00 SYN URGP=0

My second Smoothie has a blank log so I assume there's definitely a problem!

But is there a simpler solution than a rebuild?

Thanks

Steve

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