I have a network monitoring program and I am using the lb app from netmap to distribute packets to netmap pipes. The monitor processes are successfully receiving packets.
I would like to modify lb to send some packets to the host stack and have packets coming from the host stack go out on the monitoring ethernet interface. I am relatively new to using netmap and it is not obvious to me how to properly send/receive some packets to the host tx/rx rings while still letting the the netmap pipes forward packets to my monitoring application. I have looked at the bridge app from netmap which opens 2 netmap ports. It does not seem to me that that would be the right way to deal with the host stack in the context of lb. Should I just process the last tx/rx ring differently from the first ones that are forwarding packets to the netmap pipes? Thanks, Kim
