How to make ToS marking and further route such packets over the network?

Question

openvpn

Such a situation, it is necessary to start marked traffic along the network chain from Openvpn. I thought of it
through ToS, but I didn’t find a practical manual, can you tell me?

Answer 1

Why is TOS here?
Most often, if there is a condition by which traffic can be marked, then this condition can be used to send traffic to the desired chain.
If you really need to mark, then it's better to use mark.
And only if you need to transfer marked traffic over the network, you should use TOS.
By using TOS:
- labeling
- mark check
All of the above is taken from here: www.opennet.ru/docs/RUS/iptables