Wireshark-bugs: [Wireshark-bugs] [Bug 10280] Frame Relay dissector doesn't handle X.25-over-Fram

Date: Sat, 11 Oct 2014 00:21:52 +0000

Comment # 10 on bug 10280 from
> What I have been able to determine from the traces taken, is that the complete
> X.25 packet is stripped of it's Preamble and Frame Check Bytes, then
> encapsulated with a 2-Byte FR header and a 2-Byte FCS trailer.

So "complete X.25 packet" refers to LAPB and the X.25 Packet Layer Protocol. so
the Frame Relay payload begins with a LAPB address?

-Correct. If you look in the trace, you'll notice a few FRMR packets followed
by a SABM recovery.


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