The Achilles tendon or heel cord, also known as the calcaneal tendon (Latin: Tendo calcaneus), is a tendon of the back of the leg, and the thickest in the human body. It serves to attach the plantaris, gastrocnemius (calf) and soleus muscles to the calcaneus (heel) bone.he Achilles tendon or heel cord, also known as the calcaneal tendon (Latin: Tendo calcaneus), is a tendon of the back of the leg, and the thickest in the human body. It serves to attach the plantaris, gastrocnemius (calf) and soleus muscles to the calcaneus (heel) bone.
Definition: ICMP is a network protocol useful in Internet Protocol (IP) network management and administration. ICMP is a required element of IP implementations.ICMP is a control protocol, meaning that it does not carry application data, but rather information about the status of the network itself.ICMP can be used to report:CMP is a required element of IP implementations. ICMP is a control protocol, meaning that it does not carry application data, but rather information about the status of the network itself.
Prevent hacker probing: Block bad ICMP messages. The ICMP protocol facilitates the use of important administrator utilities such as ping and traceroute, but it can also be manipulated by hackers to get a snapshot of your network.Learn what ICMP traffic to filter and what to allow.ow the TTL for the packet is expired. The router sends back an ICMP message type 11 (Exceeded) code 0 (TTL&#8212Exceeded) packet to your system with a source address. Your system displays the round-trip time for that first hop and sends out the next UDP packet with a TTL of 2.