I have tested Devik''s tc (103592 bytes) and 2.6.8 which I compiled. Both return "RTNETLINK answers: Invalid argument". Stephen Hemminger should be sent a patch that fixes this. An example that returns the above error message is: tc filter add dev eth1 parent 1: protocol arp prio 5 u32 \ match u16 0x0806 0xffff at -2 flowid 1:50 I''m using this because it works: # Example that matches ARP (a big "thank you" to Martin Brown for this!): # dst MAC is 6 bytes at -14 # src MAC is 6 bytes at -8 # the ARP protocol is 2 bytes at -2 # the "0806" comes from linux/include/linux/if_ether.h tc filter add dev eth1 parent 1: protocol ip prio 5 u32 \ match u16 0x0806 0xffff at -2 flowid 1:50 gypsy _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/