netsed Proxy

This is a quick (and dirty) way to ignore RICs without changing the software, just inserting a simple proxy in the middle.

• Install „wildcard netsed“ (https://github.com/xlab/netsed)
• Add the following line to /etc/rc.local :

sudo netsed tcp 43434 dapnet.afu.rwth-aachen.de 43434 's/:C8:3:%*%0a/:0:3:A%0a/i' 's/:D0:3:%*%0a/:0:3:B%0a/i' 's/:D8:3:%*%0a/:0:3:C%0a/i' 's/:E0:3:%*%0a/:0:3:D%0a/i' 's/:11A8:3:%*%0a/:0:3:X%0a/i' &

• On Unipager, change the default server to 127.0.0.1.

This creates a proxy that intercepts and changes DAPNET messages based on rules. On the netsed command mentioned above, RICs 200, 208, 224, 216, are being zeroed. Packets are still transmitted over radio but with no playload, so much smaller, and requiring less timeslots (and energy).