Ethereal-users: Re: [Ethereal-users] Advice on an HTTP request

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From: "Ronnie Sahlberg" <ronnie_sahlberg@xxxxxxxxxxxxxx>
Date: Wed, 14 Jan 2004 21:36:26 +1100
He did transfer one "byte" between packet 1 and 3.
the SYN bit as well as the FIN bit counts as one "byte" in the sequence
number space.

the sequence numbers are perfectly normal.

----- Original Message ----- 
From: wrolf.courtney
Sent: Wednesday, January 14, 2004 1:47 AM
Subject: Re: [Ethereal-users] Advice on an HTTP request


>
>
>
>
> 1  C TCP  2394 > http [SYN] Seq=1716877397 Ack=0 Win=65535 Len=0
> 2  S TCP  http > 2394 [SYN, ACK] Seq=9296 Ack=1716877398 Win=2048 Len=0
> 3  C TCP  2394 > http [ACK] Seq=1716877398 Ack=9297 Win=65535 Len=0
>
> Your client sent Seq=...97 in packet 1, but  Seq=...98 in packet 3,
without
> sending another byte.
>
> The server ignores the data sent later, and is still waiting for the
> missing byte.  Eventually it closes thet connection, when the client won't
> send up the missing byte.
>
> Wrolf Courtney
> Donovan Data Systems, Inc.
> (212) 633-5470