ICMP Address Mask Reply
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.
| Internet protocols |
|---|
| Application layer |
|
| Transport layer |
|
| Routing protocols * |
|
| Internet layer |
|
| Link layer |
|
| * Not a layer. A routing protocol belongs either to application or network layer. |
Read more about ICMP Address Mask Reply: Technical Details, Control Messages
Famous quotes containing the words address, mask and/or reply:
“Self-confidence is apt to address itself to an imaginary dullness in others; as people who are well off speak in a cajoling tone to the poor.”
—George Eliot [Mary Ann (or Marian)
“In the event of an oxygen shortage on airplanes, mothers of young children are always reminded to put on their own oxygen mask first, to better assist the children with theirs. The same tactic is necessary on terra firma. There’s no way of sustaining our children if we don’t first rescue ourselves. I don’t call that selfish behavior. I call it love.”
—Joyce Maynard (20th century)
“Someone once asked me why women don’t gamble as much as men do, and I gave the common-sensical reply that we don’t have as much money. That was a true but incomplete answer. In fact, women’s total instinct for gambling is satisfied by marriage.”
—Gloria Steinem (b. 1934)