Internet Control Message Protocol. J. Postel. September 1981. ... For such purposes this protocol, the Internet Control Message Protocol (ICMP), is used. ICMP, uses the basic support of IP as if it were a higher level protocol, however, ICMP is actually an integral part of IP, and must be implemented by every IP module.
www.faqs.org/rfcs/rfc792.html
Internet Control Message Protocol (ICMP), documented in RFC 792, is a required protocol tightly integrated with IP. ICMP messages, delivered in IP packets, are used for out-of-band messages related to network operation or mis-operation.
www.freesoft.org/CIE/Topics/81.htm
Can you imagine a world where there are no traffic lights, stop signs, and other ways to control daily life? ... If you would like to read the next article in this series then please check out Understanding the ICMP Protocol (Part 2).
www.windowsnetworking.com/articles_tutorials/Understand... www.windowsnetworking.com/articles_tutorials/Understanding-ICMP-Protocol-Part1.html
In part one of the article we covered what the ICMP protocol actually was, and what it was used for. Further to that we also looked at one of the most common ICMP message types seen; the ping packet. ... If you missed the previous article in this series please read, Understanding the ICMP Protocol (Part 1).
www.windowsnetworking.com/articles_tutorials/Understand... www.windowsnetworking.com/articles_tutorials/Understanding-ICMP-Protocol-Part2.html
Internet Control Message Protocol - Wikipedia, the free encyclopedia
The Internet Control Message Protocol ( ICMP ) is one of the core protocols of the Internet Protocol Suite. It is chiefly used by networked computers' operating systems to send error messages—indi...
en.wikipedia.org/wiki/Internet_Control_Message_Protocol
ICMP Router Discovery Protocol - Wikipedia, the free encyclopedia
ICMP Internet Router Discovery Protocol ( IRDP ) uses Internet Control Message Protocol (ICMP) router advertisements and router solicitation messages to allow a host to discover the addresses of op...
en.wikipedia.org/wiki/ICMP_Router_Discovery_Protocol
A graphical description of the ICMP protocol header. ... IP implementations are required to support this protocol. ICMP is considered an integral part of IP, although it is architecturally layered upon IP. ICMP provides error reporting, flow control and first-hop gateway redirection.
www.networksorcery.com/enp/protocol/icmp.htm www.networksorcery.com/enp/protocol/icmp.htm
For such purposes this protocol, the Internet Control Message Protocol (ICMP), is used. ICMP, uses the basic support of IP as if it were a higher level protocol, however, ICMP is actually an integral part of IP, and must be implemented by every IP module.
www.ietf.org/rfc/rfc792.txt
-p — Sets the IP protocol for the rule, which can be either icmp, tcp, udp, or all, to match every supported protocol. In addition, any protocols listed in /etc/protocols may also be used. If this option is omitted when ... These match options are available for the Internet Control Message Protocol (ICMP) (-p icmp):
www.redhat.com/docs/manuals/linux/RHL-9-Manual/ref-guid... www.redhat.com/docs/manuals/linux/RHL-9-Manual/ref-guide/s1-iptables-options.html
To trace ICMP protocol traffic, you can specify options in the global traceoptions statement at the [edit routing-options] hierarchy level, and you can specify ICMP-specific options by including the traceoptions statement at the [edit protocols router-discovery] hierarchy level:
www.juniper.net/techpubs/software/junos/junos42/swconfi... www.juniper.net/techpubs/software/junos/junos42/swconfig-routing42/html/icmp-config6.html