Ethereal-dev: Re: [Ethereal-dev] [patch] packet-tcp.c and sequence wrap.

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From: "Ronnie Sahlberg" <sahlberg@xxxxxxxxxxxxxxxx>
Date: Wed, 18 Sep 2002 22:25:57 +1000
Checked in.

If you are looking at the seq/ack analysis code, there are two relatively
minor
additions that code really needs that perhaps you want to look at?

It would be useful if the code could detect and flag for:
* Duplicate ACKs (only flagged when we really has received segments beyound
the left edge of the window)
* Retransmission immediately after duplicate ACK >=#3 as FastRetransmission
* Zero-Window probe, when sending exactly 1 byte beyong the right edge of
the window when the receiver has indicated window==0.


These would be very useful and hopefully not too difficult to add.
I would do it myself unless my spare time had been seriously limited the
next few weeks.

best regards
    ronnie sahlberg


From: "didier"
Sent: Wednesday, September 18, 2002 9:26 PM
Subject: [Ethereal-dev] [patch] packet-tcp.c and sequence wrap.


> Hi
> The code in CVS doesn't work.
>
> It's a copy and paste from the linux kernel. (I can mail a capture with
> a sequence wrap).
>
> Didier
>