Hi, I am currently writing my master thesis about a particular IPv6 QoS signalling protocol. One of my goals is to present a prototype implementation of the protocol on Linux. For this I need to be able to match IPv6 packets based on their flowlabel. This is currently mainly to maintain statistics on how many bytes have been transferred per flow, but might be used for other things as well. Is it possible with ip6tables to match packets based on their flowlabel? Also, if anyone has a better idea how to collect statistics on a per flow basis, please let me know :-) Hope someone can help me. Cheers, Paul Fleischer