What Is ICMP Unreachable?
parama.blog.arph.org › what-is-icmp-unreachableNov 01, 2021 · The ICMP - Destination net unreachable message is one which a user would usually get from the gateway when it doesn't know how to get to a particular network. The ICMP - Destination host unreachable message is one which a user would usually get from the remote gateway when the destination host is unreachable.
ICMP Destination Unreachable messages
www.omnisecu.com › tcpip › icmp-destinationICMP Code Meaning Description; 0: Net Unreachable: The destination network could not be found. 1: Host Unreachable: The destination network is available, but the destination computer was not. The destination computer may be down. 2: Protocol Unreachable: Specified protocol is invalid. 3: Port unreachable: Specified port is invalid. 4 ...