https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=3684
Summary: SNMP cannot be decoded in case of appended data to
message
Product: Wireshark
Version: unspecified
Platform: Other
OS/Version: Windows XP
Status: NEW
Severity: Normal
Priority: Medium
Component: Wireshark
AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
ReportedBy: deneb78it@xxxxxxxx
Created an attachment (id=3288)
--> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=3288)
SNMP GET message saved as libcap
Build Information:
wireshark 1.2.0 (SVN Rev 28753)
Copyright 1998-2009 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+ 2.16.2, with GLib 2.20.3, with WinPcap (version unknown),
with libz 1.2.3, without POSIX capabilities, with libpcre 7.0, with SMI 0.4.8,
with c-ares 1.6.0, with Lua 5.1, with GnuTLS 2.8.1, with Gcrypt 1.4.4, with MIT
Kerberos, with GeoIP, with PortAudio V19-devel (built Jun 15 2009), with
AirPcap.
Running on Windows XP Service Pack 2, build 2600, with WinPcap version 4.1
beta5
(packet.dll version 4.1.0.1452), based on libpcap version 1.0.0, GnuTLS 2.8.1,
Gcrypt 1.4.4, without AirPcap.
Built using Microsoft Visual C++ 9.0 build 30729
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I monitor by wireshark a NMS tool based on SNMP protocol.
My NMS tool appends some bytes (13) of appended data (a sort of encapsulation).
The problem is the following:
If I use Ethereal (e.g. version 0.10.7), the SNMP packet is correctly decoded
and the appended data is not decoded.
If I use Wireshark (see Build Information), nor the appended data, nor SNMP
message is decoded. So with wireshark is no more possible to decode SNMP
messages coming for that system.
In attach a SNMP message that can be correctly decoded by Ethereal and not by
Wireshark.
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