Consolidate firewall rules into a single rule?

[Gittyperson]

Don't know if there's any impact on system performance (probably not), but is there a reason for creating separate rules (more than 150) instead of merging them into one? I believe Windows Firewall supports this and ranges can be entered too:

64.4.23.0-64.4.23.255,65.52.100.0-65.52.100.255, 191.239.54.52,207.46.41.202,207.68.166.254 etc.
Just a single, large line into "Remote address".

If anything, it will look better in the rules list. Perhaps the current method is preferred because separate rules are easier to enable/disable for testing purposes.

[crazy-max]

Multiple entries can be specified for remoteip by separating them with a comma according to the Netsh AdvFirewall Firewall Commands but like you said it's easier to separate rules for testing purposes.
I don't know if network performances can be altered but this is not significant on a personal computer but can be on a router.
We can try to benchmark to have an idea.

[Atavic]

The improvement should be minimal, beyond human recognition, in the scale of milliseconds.

[crazy-max]

After some investigation there is no impact on system performance for firewall and hosts rules.

[Gittyperson]

By the way, it seems that adding multiple rules (on the Windows Firewall) takes a lot longer. For example, I just added the new rules with WindowsSpyBlocker and it took around a minute. Adding a single (merged) rule would probably require a couple of seconds.

[crazy-max]

You right @Gittyperson I will make an improvement on this

[Atavic]

My previous statement was about Linux OS, not Windows. Sorry for that.