I am trying to use the htb traffic shaping example from the advanced routing howto and the tc filter commands aren't working. tc's error messages seem to be nearly content free and I haven't been able to figure out or guess what the problem is. It appears to be something after the 'u32' in the following sample: [root@bruno bruno]# tc filter add dev ppp0 parent 1:0 protocol ip prio 10 u32 match ip tos 0x10 0xff flowid 1:10 RTNETLINK answers: Invalid argument All four of the tc filter commands in the script produce this same error message.
