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ICMPv6
| Communication protocol | |
 General structure of ICMPv6 Messages | |
| Abbreviation | ICMPv6 |
|---|---|
| Purpose | Auxiliary Protocol for IPv6 |
| Introduction | December 1995 |
| OSI layer | Network layer |
| RFC(s) | RFC 4443 |
| Internet protocol suite |
|---|
| Application layer |
| Transport layer |
| Internet layer |
| Link layer |
Internet Control Message Protocol version 6 (ICMPv6) is the implementation of the Internet Control Message Protocol (ICMP) for Internet Protocol version 6 (IPv6).[1] ICMPv6 is an integral part of IPv6 and performs error reporting and diagnostic functions.
ICMPv6 has a framework for extensions to implement new features. Several extensions have been published, defining new ICMPv6 message types as well as new options for existing ICMPv6 message types. For example, Neighbor Discovery Protocol (NDP) is a node discovery protocol based on ICMPv6 which replaces and enhances functions of ARP.[2] Secure Neighbor Discovery (SEND) is an extension of NDP with extra security. Multicast Listener Discovery (MLD) is used by IPv6 routers for discovering multicast listeners on a directly attached link, much like Internet Group Management Protocol (IGMP) is used in IPv4. Multicast Router Discovery (MRD) allows the discovery of multicast routers.
- ^ A. Conta; S. Deering (March 2006). M. Gupta (ed.). Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification. Network Working Group. doi:10.17487/RFC4443. STD 89. RFC 4443. Internet Standard 89. Obsoletes RFC 2463. Updates RFC 2780. Updated by RFC 4884.
- ^ T. Mrugalski; M. Siodelski; B. Volz; A. Yourtchenko; M. Richardson; S. Jiang; T. Lemon; T. Winters (November 2018). Dynamic Host Configuration Protocol for IPv6 (DHCPv6). Internet Engineering Task Force. doi:10.17487/RFC8415. ISSN 2070-1721. RFC 8415. Proposed Standard. sec. 3. Obsoletes RFC 3315, 3633, 3736, 4242, 7083, 7283 and 7550.
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