I would like to implement an AQM on a RPL intermediate router

[ekarani]

Greetings to all.

For a master's degree project, I am trying to implement AQM CoDel in an intermediate router that mediates communication between the UDP client and server, where the UDP server is the root of the RPL DAG. Since this is my first time using the simulator, I wanted to adapt the examples provided in the Contiki-3 Cooja VM. To do this, I modified the codes in the examples/ipv6/rpl-udp folder to calculate end-to-end latency and created (with the help of Chat GPT) the code for the intermediate router (which is not the root of the DAG, unlike the border router in the examples). The router is correctly forwarding packets between the client and server, but there is a bufferbloat phenomenon -- which I want to reduce with AQM. At the moment, I am having difficulty intercepting the router packets to be queued.

Are there any examples or documentation on packet interception in Cooja?