[LARTC] add filter -> invalid argument

[Paul Caritj]

Hello,

Perhaps I am mising something; I am trying to implement a hashing filter 
nearly identical to that outlined in the iproute2 docs at 
http://www.opens.com.br/documentacao/IPRoute2/lartc.adv-filter.hashing.html
However, I dont get very far because I get "invalid argument" whenever I 
issue any filtering commands, eg:

[root@localhost root]# tc filter add dev eth1 parent 1:0 prio 5 protocol ip u32

RTNETLINK answers: Invalid argument



This is obviously bothersome :)  I am using RedHat linux 9.0 with 
(stock) kernel ver 2.4.20.


Any help would be appreciated as always!

Thanks,
Paul