Mangle: Diffrent Chain, Same Mark

RouterOS General
1

Good day everyone,

What are the differences between these mangle:

Chain Prerouting → Mark Connection
and
Chain Forward → Mark Connection

Concerning to:

  • the packets itself
  • when the packets got marked
  • different uses

Or any answers will be helpful.

So far I am not able to see the differences between the two because both use ‘Mark Connection’.

Thanks

2

http://www.mikrotik.com/testdocs/ros/2.9/ip/flow.php

for example, in Prerouting, you will mark packets, which will be processed in Input, not Forward chain

3

Thanks,

Well… I have seen and done by myself, people use chain prerouting → mark connection AND chain forward → mark connection, to set queue tree, both mangle succeeded.

I can not see logical differences between both mangle, yet.

I hope anybody can help me with this understanding.

Anyone?

4

If you use simple queues then you need to use prerouting chain (see packet flow).
If using queue tree then forward chain is OK