Wireshark-bugs: [Wireshark-bugs] [Bug 5980] Add draft-ietf-6man-rpl-routing-header-03 Support (R

Date: Wed, 1 Jun 2011 05:50:47 -0700 (PDT)

--- Comment #1 from Colin O'Flynn <coflynn@xxxxxxxxx> 2011-06-01 05:50:45 PDT ---
Created an attachment (id=6437)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=6437)
Example capture showing the RH4 Decoding

Description of what you see when you open this capture:

Packet #2) A packet with the RH4 header, being sent two hops away. There are 2
total segments, and 2 are left. 

Packet #3-6) A packet being forwarded with an RH4 header. Note the segments
left decreases at each hop, and the addresses in the list change as they are
being swapped out. Also the TCP checksum is only valid on the last hop (packet
#6), because the IPv6 destination address changes on every hop. Only on the
last hop is the address the same as when the IPv6 checksum was calculated.

On this forwarding path, packet #3, #4, and #5 are all sent from different RH4
implementations. Packets #6 is from the same implementation as packet #5.

Packet #7) A malformed packet, the 802.15.4 data was corrupted. The calculated
total segments is invalid as the RH4 header was corrupted, an error is raised.

Packet #8) An IPv6 packet without RH4 header, nothing else was broken ;-)

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