The difference between ARP and RARP in IPv6

Tags:
Arp
ARP and RARP
IPv6 ARP
IPv6 RARP
RARP
WAN
What is the difference in ARP and RARP when it comes to IPv6?

Software/Hardware used:
WAN, ARP, RARP, ARP and RARP, IPv6 ARP, IPv6 RARP

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Found this useful hope it helps:

<b>Neighbor Discovery</b>

found at www.uniformed.org

The IPv4 ARP protocol goes away in IPv6. Its replacement consists of the ICMPv6 Neighbor Discovery (ND) and ICMPv6 Neighbor Solicitation (NS) protocols. Neighbor Discovery allows an IPv6 host to discover the link-local and auto-configured addresses of all other IPv6 systems on the local network.

Neighbor Solicitation is used to determine if a given IPv6 address exists on the local subnet. The linklocal address is guaranteed to be unique per-host, per-link, by picking an address generated by the EUI-64 algorithm. This algorithm uses the network adapter MAC address to generate a unique IPv6 address. For example, a system with a hardware MAC of 01:02:03:04:05:06 would use a link-local address of fe80::0102:03FF:FE04:0506. An eight-byte prefix is created by taking the first three bytes of the MAC, appending FF:FE, and then the next three bytes of the MAC. In addition to link-local addresses, IPv6 also supports stateless auto-configuration. Stateless auto-configured addresses use the “2000::” prefix. More information about Neighbor Discovery can be found in RFC 2461.

Also find the better explanation on this article: <a href=”http://http://www.tcpipguide.com/free/t_TCPIPAddressResolutionForIPVersion6.htm”> Address resolution for IPv6

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  • Sixball
    IPv4 ARP used broadcasts to "discover" the IP-MAC relationship. As Guardian posted, that no longer exists in IPv6. The Multicast ICMPv6 ND/NS mechanism is the "new ARP" in IPv6
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