default Firewall Network Control Rules

Help for v2
#1

What are the default Network Control Rules Comodo firewall creates?
I have one rule with a IPproto is gre, and I don’t know what that means.

#2

Here is some info on default network Rules:

https://forums.comodo.com/frequently_asked_questions_faq_for_comodo_firewall/summary_of_network_rules-t5340.0.html

The one you mention is rule 4.

GRE is Generic Routing Encapsulation - this link gives some information on this:

:SMLR

#3

Thanks.