public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Torsten Luettgert <t.luettgert@pressestimmen.de>
To: linux-kernel@vger.kernel.org
Subject: incorrect TCP checksum on sent TCP-MD5 packets (2.6.20-rc5)
Date: Sun, 14 Jan 2007 20:32:34 +0100	[thread overview]
Message-ID: <1168803154.3090.45.camel@elida.cbxnet.de> (raw)

Hi,

I'm using the new TCP-MD5 option in 2.6.20-rc4 and rc5
to talk BGP to cisco routers.
My box connects to the cisco, and the handshake looks fine:
SYN, SYN/ACK, ACK all have md5 option and correct TCP checksums.

All packets after that, i.e. the ones with payload data,
have wrong TCP checksums, quoth wireshark.
The same happens if the cisco connects: the first, "empty" packet
is ok, packets with payload aren't.

Am I doing something wrong? Or is this a bug?

I'll gladly send tcpdumps if it helps.

Thanks for your help,
Torsten


             reply	other threads:[~2007-01-14 20:16 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-14 19:32 Torsten Luettgert [this message]
2007-01-15 18:15 ` incorrect TCP checksum on sent TCP-MD5 packets (2.6.20-rc5) Stephen Hemminger
2007-01-16 10:40   ` incorrect " Torsten Lüttgert

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1168803154.3090.45.camel@elida.cbxnet.de \
    --to=t.luettgert@pressestimmen.de \
    --cc=linux-kernel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox