Results for: Icmp

What is the function of ICMP?

To handle error messages when a message does not reach it's destination. To announce timeouts and network congestion.
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Why there is restriction on generation of an ICMP message to a failed ICMP error message?

ICMP messages are of interest both to end-hosts and intermediate routers, although some messages are generally only sent by routers. It is never permissible for an ICMP error (MORE)