Hi Simon, Thank you for your patch. I really appreciate your great work. I setup two nodes connecting each other using batman-adv. After applying this patch, I tried to use iptables to change the DSCP value and it properly mapped with access category. But the when I put batman interface (bat0) under bridge (br0), DSCP value no longer mapped with access category. The iptables command that I used is iptables -t mangle -A POSTROUTING -s <source ip> -j DSCP --set-dscp <dscp value> I'm still new in this field. Did I miss some command to pass the iptables command to the bridge? Thank you.