https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=2718
Summary: Ethernet II with SFD and LLC ?
Product: Wireshark
Version: 1.0.0
Platform: PC
OS/Version: Windows XP
Status: NEW
Severity: Normal
Priority: Low
Component: Wireshark
AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
ReportedBy: jboehm@xxxxxxxxxxxxxx
Build Information:
Paste the COMPLETE build information from "Help->About Wireshark", "wireshark
-v", or "tshark -v".
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I send VLAN-Frames over the Ethernet.
They are interpreted as Ethernet II Frames and Wireshark is still looking for
LLC.
(Just 802.3 Ethernet contains LLC)
Due to measurements on the bus I discovered that the preamble is followed by a
SFD byte. (Just 802.3 Ethernet uses SFD)
The following message is what Wireshark captured.
*****************************************
+ Frame 160 (60 bytes on wire, 60 bytes captured)
- Ethernet II, Src: 02:00:01:00:00:01 (02:00:01:00:00:01), Dst:
02:00:01:00:00:01 (02:00:01:00:00:01)
+ Destination: 02:00:01:00:00:01 (02:00:01:00:00:01)
+ Source: 02:00:01:00:00:01 (02:00:01:00:00:01)
Type: 802.1Q Virtual LAN (0x8100)
+ 802.1Q Virtual LAN, PRI: 3, CFI: 0, ID: 1
+ Logical-Link Control
+ Data (39 bytes)
*****************************************
Ethernet II contains LLC ?
Ethernet II with preamble and SFD ?
What’s wrong?
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