[Olsr-dev] Duplicate LQ_TC_MESSAGE in OLSR packets

[Patrick McCarty]

Hi folks,

I was doing some network traffic inspection today and noticed that
there appear to be duplicate LQ_TC_MESSAGE types in the OLSR traffic.
(Packet dump below)

Anyway.. if you compare the data segments for these messages, they are
identical.

Seems a sanity check is needed.. I'm trying to figure out where that
might need to be implemented.

I suspect that this is the case for LQ_HELLO messages as well, but
since the interval I have configured for those is not as often, the
problem is hidden. Or for that matter, any other message type....

All that said... this isn't really causing any obvious problems..
Aside from the exponentially increased network traffic. (And I suppose
increased processing overhead on the receivers)

Any thoughts?

Thanks,

Patrick

------
Packet Length: 196 bytes
Packet Sequence Number: 34717

Message Type: LQ_TC_MESSAGE (202)
Validity Time: 248.000 (in seconds)
Message Size: 24 bytes
Originator Address: 192.168.0.103 (192.168.0.103)
Time to Live: 254
Hop Count: 0
Message Sequence Number: 42674
Data (12 bytes)

(Then about 10 more of these per packet)

-----
Full dump

0000   ff ff ff ff ff ff 00 0c 29 8e 7e a4 08 00 45 10  ........).~...E.
0010   00 e0 00 00 40 00 40 11 b7 46 c0 a8 00 67 c0 a8  (spam-protected)@..F...g..
0020   00 ff 02 ba 02 ba 00 cc db e1 00 c4 87 9d ca fb  ................
0030   00 18 c0 a8 00 67 fe 00 a6 b2 00 0b 00 00 ac 10  .....g..........
0040   42 01 ff ff 00 00 ca fb 00 18 c0 a8 00 67 01 00  B............g..
0050   a6 b4 00 0b 00 00 ac 10 42 01 ff ff 00 00 ca fb  ........B.......
0060   00 18 c0 a8 00 67 02 00 a6 b7 00 0b 00 00 ac 10  .....g..........
0070   42 01 ff ff 00 00 ca fb 00 18 c0 a8 00 67 01 00  B............g..
0080   a6 bd 00 0b 00 00 ac 10 42 01 ff ff 00 00 ca fb  ........B.......
0090   00 18 c0 a8 00 67 04 00 a6 be 00 0b 00 00 ac 10  .....g..........
00a0   42 01 ff ff 00 00 ca fb 00 18 c0 a8 00 67 01 00  B............g..
00b0   a6 c0 00 0b 00 00 ac 10 42 01 ff ff 00 00 ca fb  ........B.......
00c0   00 18 c0 a8 00 67 02 00 a6 c2 00 0b 00 00 ac 10  .....g..........
00d0   42 01 ff ff 00 00 ca fb 00 18 c0 a8 00 67 01 00  B............g..
00e0   a6 c4 00 0b 00 00 ac 10 42 01 ff ff 00 00        ........B.....