[CentOS] TC Filter Flows & ESFQ - Traffic Shaping

Hi,

We currently have ESFQ running on an old Fedora machine and i'm trying to build a new router with something similar using CentOS 5.5

The problem is that it seems by default the CentOS is not compiled with TC ESFQ or TC filter hash flows

I get the following error: Unknown filter "flow", hence option "hash" is unparsable

How can i add support for the hash flow option or ESFQ or perhaps someone can suggest a better option where I can get the same functionality of even sharing based on src / dst

tc filter add dev eth0 parent 10: protocol ip handle 10 flow hash keys dst divisor 1024