The Ping Command

The ping (Packet Internet Groper) is used to send ICMP (Internet Control Message Protocol) packets from one host to another. Ping transmits packets using the ICMP ECHO_REQUEST command and expects an ICMP ECHO_REPLY.

Usage:    ping IP address or Hostname

Switches:    -t             Ping the specifed host until interrupted.

                     -a             Resolve addresses to hostnames.

                     -n count       Number of echo requests to send.

                     -l size        Send buffer size.

                     -f             Set Don't Fragment flag in packet.

                     -i TTL         Time To Live.

                 -v TOS         Type Of Service.

                 -r count       Record route for count hops.

                 -s count       Timestamp for count hops.

                 -j host-list   Loose source route along host-list.

                 -k host-list   Strict source route along host-list.

                 -w timeout     Timeout in milliseconds to wait for each reply.