Hi all
How to forward packets received form neighbor motes ?,
consider scenario
1-----------2------------3
mote 1 and 3 are not in their transmission range,
whenever mote 1 send packet, mote 2 captures it and the stores for few time, and later sends to mote 3 , i.e. mote 3 feels that the packets are coming directly from mote 1
------------------------------------------------------
I am working on wormhole attack on RPL IoT,
guidance regarding for coding above (mote 2) will helpful
where should i focus either on contikimac or cc2420 radio chip for coding above mote ?
Any one has experience on creation of wormhole attack on any simulator ? then please guide regarding the same
Thanks in Advance
Hi,
Seems that mote2 is simply relaying the packets. You can configure your mote to do so if you are able to program it. I think you can check how the datalink layer reads the packet from the interface buffer and modify the way the datalink layer writes so that the address is of mote1. Additionally the interface receiving the packet has to be in promiscous mode in order to evesdrop. You can find programming example for the interfaces. Regarding the choice of radio you have to see which standard u want to follow and what are the detailed specs . I worked on iris mote and that comes with a radio module , all I did was to access the mote through a programming interface . For the attacks there might be some simulators available online bit if u want to program specific radio units etc may be omnet, ns2 or opnet can be ised
If you want to send this kind of messages at MAC level could be difficult, at least you can do it, keeping the original address on the network layer address or just modifying the contikimac, to keep the original source address and modifying the rest of the message, then, when your mote 3 receives the packet and decipher it, the remaining information at MAC level will be from the mote 1 instead of mote 2.
Regards,
Francisco
Hi Francisco Estevez, I did it at RDC layer sicslowmac, just adding few if else lines, without modifying any thing, just resend the packets which are hit on radio interface
Thanks for your help
- Badges
- Science topic