Hi all, I'm helping out with the development of a wireless traffic QoS application that uses the QUEUE target. I'm looking for a way for the userspace application to be able to discriminate between packets in the QUEUE based on their outgoing network interface. At first I thought that putting packets from the POSTROUTING chain into the QUEUE would allow me to see their "hw_addr" and I would be able to tell their exit interface based on their source MAC address. Reading up some more tells me that packets in the POSTROUTING chain don't have their (outgoing) Ethernet headers on them, so the "hw_addr" will be blank. Can anyone suggest a possible way to do this? I've thought of reading a packets' destination IP address and then doing a lookup of the routing table - but this seems messy and I don't like it. I'd really like to be able to read the source MAC of an outgoing packet (in the QUEUE), but as far as I can tell this is beyond the reach of iptables. An alternate way to do what I want to do is setup a separately controllable QUEUE for each interface - but again, as far as I can tell, this capability doesn't exist. Any suggestions are welcome... Cheers, Dan
