I want to filter traffic from source ports X and Y into a filter I try tc filter add dev eth0 parent 1: protocol ip prio 9 u32 \ match ip sport X 0xffff \ flow id 1:30 and it works fine but when i add tc filter add dev eth0 parent 1: protocol ip prio 9 u32 \ match ip sport X 0xffff \ match ip sport Y 0xffff \ flow id 1:30 I get and illegal match error. whats going wrong and how to i do it properly?