Wireshark-bugs: [Wireshark-bugs] [Bug 1302] New: Wireshark breaks outbound TCP connections with
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Sun, 14 Jan 2007 16:21:43 +0000 (GMT)
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=1302

           Summary: Wireshark breaks outbound TCP connections with an Intel
                    Pro/100 S adapter
           Product: Wireshark
           Version: 0.99.4
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: Major
          Priority: Medium
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: wireshark@xxxxxxxxxxxx


Build Information:
Version 0.99.4 (SVN Rev 19757)

Copyright 1998-2006 Gerald Combs <gerald@xxxxxxxxxxxxx> and contributors.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Compiled with GTK+ 2.6.9, with GLib 2.6.6, with WinPcap (version unknown), with
libz 1.2.3, with libpcre 6.4, with Net-SNMP 5.3.1, with ADNS, with Lua 5.1,
with
GnuTLS 1.5.1, with Gcrypt 1.2.3, with MIT Kerberos, with PortAudio <= V18, with
AirPcap.

Running on Windows XP Service Pack 2, build 2600, with WinPcap version 3.1
(packet.dll version 3, 1, 0, 27), based on libpcap version 0.9[.x], without
AirPcap.

Built using Microsoft Visual C++ 6.0 build 8804
--
When wireshark is active (capturing from the network device), any attempted
outbound TCP connections will fail. This appears to be due to a TCP checksum
errors in the syn-ack-ack packet (the syn packet checksum is correct), to which
the server responds to with a rst. Connections already established when the
capture is started are unaffected and continue to operate normally.

Using Intel PROSet version 11.1.0.19 drivers. TCP checksum offloading is
disabled - enabling it does not fix the problem either.

The network adapter is an onboard Intel Pro/100 S adapter on a MSI K7D Master-L
motherboard, with two MP2600 CPUs.


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