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.
The ICMP message is sent only when a static route is configured to the null interface. ICMP message is also not sent to the source if the static route is not configured. By default, the null interface 0 is created by the router at the bootup. When EIGRP summarizes a group of routes, it always creates a route to the null interface. Configuring a null interface: CISCO-ROUTER> Enable. CISCO-ROUTER# configure terminal. CISCO-ROUTER(config)# interface null0. CISCO-ROUTER(config-if)# ip unreachable. CISCO-ROUTER(config-if)# end. To configure a static route to null interface use the following commands