Wireshark-bugs: [Wireshark-bugs] [Bug 2111] Packet incorrectly detected as SMPP

Date: Sun, 30 Dec 2007 14:38:54 +0000 (GMT)
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=2111


oder@xxxxxxxxxxxxx changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|WONTFIX                     |




------- Comment #5 from oder@xxxxxxxxxxxxx  2007-12-30 14:38 GMT -------
(In reply to comment #4)
> What Stephen meant was to attach a capture file in binary format (ie not text
> output). 

I do not have capture file in binary format. I did not save it. 


> Unfortunately you have zeroed out the tcp-payload which gets checked by the
> SMMP dissector. But I'm 99,9% sure that the first 16 bytes of your payload were
> matching a valid SMMP header. After that, the SMMP dissector could not dissect
> it properly and reported it as malformed.

What do you mean? Packets 117051 and 117052 are unchanged - I did not zero
anything. You can see question marks in 2nd and 3rd packet and two last packets
where I made corrections. The hidden data was directory paths and error message
responses - that is, ASCII text.

> The easy workaround is to disable the SMMP protocol dissector in the
> preferences when that happens.

I do not undertand. Packet clearly contains Enternet header, then IP header
then TCP data. What a fuzzy logic should be applied to find something else in
it?


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