Hi I've searched the archives for this and doesnt seem to be any message with this problem. Im trying to optimize a high load CBQ server using u32 hashes as in http://lartc.org/HOWTO//cvs/2.4routing/output/2.4routing-12.html#ss12.4 Although Ive double checked the kernel options, and also other u32 filters work very well, when I try this line I get an error: /sbin/tc filter add dev eth0 parent 1:0 prio 5 handle 2: u32 divisor 256 RTNETLINK answers: Invalid argument I am currently using a 2.4.9-21SGI_XFS_1.0.2 kernel version. Are this hashes supported only in a newer kernel version? Thanks ---------------------------- Mihai RUSU Disclaimer: Any views or opinions presented within this e-mail are solely those of the author and do not necessarily represent those of any company, unless otherwise specifically stated.