From Owen Kirby:

From Owen Kirby:
We've discovered a number of bugs in the 6LoWPAN dissector,
and have fixed them in the following patch. The fixed bugs include:
  - Incorrect UDP Checksum calculation.
  - Incorrect link-local prefix when decompressing IPHC headers.
  - Incorrect parsing of the UDP port numbers when not 8-byte aligned.
  - Overflow of the datagram offset field when reassembling fragmented packets.

git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@30840 f5534014-38df-0310-8fa8-9805f1628bb7