Which protocol does the Echo Reply/Request (ping) message use? 2 years agoby Linux Questions Which protocol does the Echo Reply/Request (ping) message use? › Category: Introduction to Linux II › Which protocol does the Echo Reply/Request (ping) message use? Vote Up 0 Vote Down Linux Questions Staff asked 2 years ago Which protocol does the Echo Reply/Request (ping) message use? UDP TCP ICMP IP Please login or Register to submit your answer Username or Email Address Password Remember Me FacebookXGoogle+PinterestLinkedIn