For each of following ICMP messages, list their possible senders (routers, non-destination hosts, and destination hosts). a) Type: destination unreachable,Code: 2/3 – protocol/port is unreachable b) Type: source quench,Code: 0 c) Type: time exceeded,Code: 1 (note when the final destination does not receive all of the fragments in a settime, it discards the received fragments and sends a time-exceeded message (code 1) tothe original source) d) Type: Redirection,Code: 1 – redirect to a host-specific route

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