Wireshark-bugs: [Wireshark-bugs] [Bug 4807] New: PPP CHAP packets from USB links (in "HDLC-Like
Date: Sat, 29 May 2010 11:19:17 -0700 (PDT)

           Summary: PPP CHAP packets from USB links (in "HDLC-Like
                    Framing") not dissected
           Product: Wireshark
           Version: SVN
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: Enhancement
          Priority: Low
         Component: Wireshark
        AssignedTo: [email protected]
        ReportedBy: [email protected]

Created an attachment (id=4704)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=4704)
PPP CHAP packet in Ethernet framing

Build Information:
Version 1.3.6-SVN-33019 (SVN Rev 33019 from /trunk)

Copyright 1998-2010 Gerald Combs <[email protected]> and contributors.
This is free software; see the source for copying conditions. There is NO

Compiled with GTK+ 2.16.6, (32-bit) with GLib 2.22.4, with WinPcap (version
unknown), with libz 1.2.3, without POSIX capabilities, without libpcre, with
0.4.8, with c-ares 1.7.1, with Lua 5.1, without Python, with GnuTLS 2.8.5, with
Gcrypt 1.4.5, with MIT Kerberos, with GeoIP, with PortAudio V19-devel (built
28 2010), with AirPcap, with new_packet_list.

Running on Windows XP Service Pack 3, build 2600, with WinPcap version 4.1.1
(packet.dll version, based on libpcap version 1.0 branch 1_0_rel0b
(20091008), GnuTLS 2.8.5, Gcrypt 1.4.5, without AirPcap.

Built using Microsoft Visual C++ 9.0 build 30729

Wireshark is Open Source Software released under the GNU General Public

Check the man page and http://www.wireshark.org for more information.
After spending some time using the new (or is it enhanced?) support for
dissection of PPP traffic carried over USB links, I'm fairly impressed; and I'm
thankful to the folks who've implemented it.

However, it seems that support for dissection of PPP CHAP packets (which are
otherwise supported, when using other carriers for PPP) is absent, which
diminishes the utility of an otherwise rather useful feature.

Attached are two trace files containing what should be identical PPP CHAP
packets (one encapsulated in Microsoft's pseudo-Ethernet framing, and one
encapsulated in USB/"HDLC-Like Framing"). 

Thanks in advance.

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