Wireshark-bugs: [Wireshark-bugs] [Bug 5638] Reassembly problem with ipv6-in-ipv6 fragmented traf
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Tue, 09 Apr 2013 20:57:43 +0000

Comment # 3 on bug 5638 from 
Created attachment 10572 [details]
inner and outer ipv6 headers fragmented, with unique identifications.

(In reply to comment #0)
> wireshark is not properly reassembling the packets with ipv6-in-ipv6 header
> when both the ipv6 headers are fragmented.

In fact it can. The original file with both inner and outer fragment headers is
questionable for it use of the same identification field in all of them. The
Fragmentation Header section of RFC 2460 says: "The Identification must be
different than that of any other fragmented packet sent recently*" where
'recently' is debatable. 

Still, if these are made different, as suggested in the RFC, things work out
nicely, as shown by the modified capture file.

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