How many IP/DNS blocks is took much?

Networking & Firewalls
1

Just purchased a NetGate 2100, got everything setup and working.

I installed pfBlockerNG, and added some feeds, below are my current total block amounts. This firewall will be deployed to a small office. How many IPs/DNS block is considered too much before it starts to slow down the network?

IPv4 - 33949
DNSBL - 31474

I have this list added but not enabled as it adds 140k to the DNS block list. I’m also blocking GeoIP on top spammers for china and russia.

https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts

2

The only thing that is impacting is the list size = more RAM. You can squeeze a ton more lists in if you opt to use the python module. The RAM savings is very significant.