An extended ping is an advanced network diagnostic function that allows administrators to manually customize Internet Control Message Protocol (ICMP) echo variables. While a standard ping simply tests if a destination is up from the default exit port, an extended ping provides a granular look into paths, MTU restrictions, and firewall rules. This technique is natively invoked on enterprise hardware—such as Cisco systems—by entering ping into the privileged EXEC command line without specifying a destination address. Core Configuration Parameters
When initiating an interactive extended ping session, engineers can manipulate several deep-packet variables:
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