Originally posted here by warl0ck7
Picture this then

Linux pays attention to TOS field especially when it is configured as a gateway.
So windows packets will always get preference hogging the Un!x machines!!!.

We need to turn off the TOS-Routing option in the kernel during a kernel rebuild.

http://www.cs.helsinki.fi/linux/linu...1-22/0386.html
Hey Hey,

All that link does (which is 4 years old and rather outdated now) is point out how to patch the kernel to function based on DSCP instead of IP Precedence. You still have to understand how it works... it won't hog the machines... The precedence is used along with the queuing type you have to determine what happens. Do you have queuing enabled on your linux gateway? Is it Class Based Weighted Fair Queuing, Low Latency Queuing, Weighted Fair Queuing or others. The precedence along with the formula that the queuing type uses determines how many of each packet are sent from the queue. It may work out to 10 of this type of packet, and then 5 of this type of packet... There's a lot more to it than just setting a bit to on or off. If you're worried about it then turn it off... but the ToS field is still considered to technically be an unused field.

Peace,
HT