Block Rule

I have a rule

Block and log Ip in/out any any whereipproto is any

I am not sure where the rule came from. Is this a rule I need?

Yes that is the rule that is the last inbound defense in Network Monitor. When you installed the firewall it had default rules already in place to protect you. This rule should also be at the very bottom of the list of rules as the rules are read from top to bottom.