ICMP Address Mask Request
The Internet Control Message Protocol (ICMP) is one of the core protocols of the Internet Protocol Suite. It is chiefly used by the operating systems of networked computers to send error messages indicating, for example, that a requested service is not available or that a host or router could not be reached. ICMP can also be used to relay query messages. It is assigned protocol number 1.
ICMP differs from transport protocols such as TCP and UDP in that it is not typically used to exchange data between systems, nor is it regularly employed by end-user network applications (with the exception of some diagnostic tools like ping and traceroute).
ICMP for Internet Protocol version 4 (IPv4) is also known as ICMPv4. IPv6 has a similar protocol, ICMPv6.
|Routing protocols *|
|* Not a layer. A routing protocol belongs either to application or network layer.|
Other articles related to "icmp address mask request, icmp, address, request":
... message may be generated as a result of a TCP, UDP or another ICMP transmission ... if the original datagram has a multicast destination address ... is included to allow the client to match the reply with the request that caused the destination unreachable reply ...
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