Advanced connection rules message reads block icmp echo request do i deny or allow communication?

i asked this question in another post still unsure what to do deny or allow i run windows xp with panda internet security 0007 all up to date .

Advanced connection rules message reads block icmp echo request do i deny or allow communication?nortan

An ICMP Echo request generally means that you are trying to 'ping' something, or someone is trying to 'ping' you. A ping is a method of verifying communication between two devices. While generally harmless, if this is an incoming ping (not generated by you) you may wish to block it so that whomever is trying to do the ping doesn't know that they have a connection to your machine.