mtr: mtr (network diagnostic tool) mtr: mtr: mtr combines the functionality of the 'traceroute' and 'ping' programs mtr: in a single network diagnostic tool. mtr: As mtr starts, it investigates the network connection between the host mtr: mtr runs on and a user-specified destination host. After it determines mtr: the address of each network hop between the machines, it sends a mtr: sequence ICMP ECHO requests to each one to determine the quality of mtr: the link to each machine. As it does this, it prints running mtr: statistics about each machine. mtr: