[Mikrotik documentation needed] Firewall connection tracking enabled auto vs yes - what's the difference?

RouterOS Beginner Basics
1

Since mikrotik firewall connection tracking enabled auto vs yes doesn’t return meaningful results and http://wiki.mikrotik.com/wiki/Manual:IP/Firewall/Connection_tracking#Connection_tracking_settings doesn’t explain the difference between auto and yes:

What’s the difference between auto and yes for the /ip firewall connection tracking enabled setting?

Background: YouTube video How to redirect DNS to own DNS server using mikrotik routerboard advices to turn it from auto to yes: why would that be?

–jeroen

2

Auto means off by default until some other feature needs it. Typically firewall…

3

So what features need it?
And what features that don’t need it can benefit from it?

–jeroen

4

It will auto-enable when you add NAT rules.
You can force-enable if you want filter rules without NAT.

5

Thanks. Someone should add that to the docs.

–jeroen