Wireshark-bugs: [Wireshark-bugs] [Bug 12138] New: Latest Wireshark can't parse VJ compressed fra
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Thu, 18 Feb 2016 12:30:12 +0000
Bug ID 12138
Summary Latest Wireshark can't parse VJ compressed frame properly
Product Wireshark
Version 2.0.1
Hardware x86
OS Windows 8
Status UNCONFIRMED
Severity Major
Priority Low
Component Dissection engine (libwireshark)
Assignee bugzilla-admin@wireshark.org
Reporter stephennuaa@aliyun.com 

Created attachment 14340 [details]
For the same packet within the same PCAP file, By using different version of
Wireshark tool, I can see different log view for this log

Build Information:
Version 2.0.1 (v2.0.1-0-g59ea380 from master-2.0)
--
https://ask.wireshark.org/questions/50291/latest-wireshark-cant-parse-vj-compressed-frame



For the same packet within the same PCAP file, By using different version of
Wireshark tool, I can see different log view. Issue is not seen on Wireshark
Version 1.10.0 but seen on recent version such as latest 2.0.1

Example:

// Wireshark Version 2.0.1

20 24.0 DTE DCE 0x002d 12 PPP Van Jacobson Compressed TCP/IP (0x002d)

// Wireshark Version 1.10.0, this is good

20 2016-02-17 10:01:18.6 14.31.22.16 121.15.143.92 12 TCP 35075 > hbci [PSH,
ACK] Seq=1 Ack=1 Win=16384 [TCP CHECKSUM INCORRECT] Len=7

Can you please let me know if there is any settings relate to this.

I checked Edit -> Preference -> Protocols -> PPP, <decompressed vj-compressed
frames> is already checked

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