IPv6 Training (Cisco) - DHCPv6 RR and DR Identification

Lately, I have many e-mail with regard to the question "What is an IPv6 DUID?

Well, an IPv6 DUID is actually a DHCP server for IPv6, or Unique Identifier (DUID). There is a demand router (RR) and a delegate Router (DR) for the identification, though it is the DHCPv6 message exchange. The DUID is unique for each request router (RR) and delegating router (DR) of the device, and format (generated) automatically from level 2 Media Access Control (MAC)"The lowest point" interface for each type of request router (RR) or Delegating Router (DR) device or a network administrator can configure manually with the help of Internet Service Provider (ISP) for information.

The reason why the DUID for requesting router (RR) and delegating router (DR) is the identifier used, because the DUID is actually "permanently" assigned to the requesting router (RR) or Delegating Router (DR), which to say, even after the requesting router (RR) orDelegating Router (DR) the device is rebooted, the router DUID for each request (RR) or Delegating Router (DR) remain unchanged. (Some might say that it is a stable DUID Identifier)

I wrote this article on the DUID, because their function is to inform you and let you know that plays an important role in the overall standings DHCP Prefix Delegation (DHCP-PD) message exchange protocol (s) occurs between the applicant wanted Router ( RR) of "customer DHCPv6"delegating router (DR) "of the DHCPv6 server.

I invite you to my website, you need to find the latest technical information on Cisco IPv6 design and implementation.

To your success

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