The firewall is a dedicated appliance.  It is not software running on
the Windows 2003 system.

On Tue, 4 Mar 2008, Jaap Keuter wrote:

> Hi,
>
> Let me ask you: The firewall is on the troubled platform? And this firewall 
> has rules for incoming non-local connections? Bet your firewall is interfering
>  in the network stack.
>
> Thanx,
> Jaap
>
> John Temples wrote:
>> I'm trying to capture some incoming HTTP connections with Wireshark
>> 0.99.8 on a Windows Server 2003 system.  The only thing Wireshark
>> captures is the three packets in the three-way handshake of the TCP
>> connection; no other packets related to the connection are captured.
>> However, the connection completes successfully.  No capture filter is
>> active in Wireshark.
>> 
>> When running Wireshark on the PC that originates the connection, the
>> entire transaction is successfully captured on the originating PC.
>> 
>> When the connection originates from a PC on the same LAN as the
>> Windows 2003 Server system, Wireshark on the Windows 2003 Server
>> system successfully captures the entire transaction.
>> 
>> The problem only occurs when the connection originates from the
>> Internet.  The LAN in question has a SonicWALL firewall with no
>> special configuration.
>> 
>> What could cause Wireshark not to see the entire connection?
>> 
>> --
>> John W. Temples, III
>
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--
John W. Temples, III
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