not having a established/related rule makes connections slow (CCR)

RouterOS General
1

Hi Guys.

Have my CCR with around 100 rules, quite a few subnets and routing.

I had an established rule close to the top as I wanted to avoid processing the rules. However, now I need to constantly ensure the rules are all processed. So I disabled this rule. From here on, all new connections/existing connections establish very slowly. Like there is a 10 second lag…

I can re-produce this everytime by disabling and enabling the rule.

Any ideas? CCR on bugfix only.

2

Anyone? Easily reproducible.

3

Of course when your router has to process all rules for every packet it can become slower, but not likely it will
cause a 10 second delay. More likely is that your rules somehow drop packets that are normally matched by
the established/related rule and that this causes the delay.
Put a log on your drop or reject rules and investigate what is happening.