DHCPv6 Prefix Delegation in Windows Vista

In a previous post, I had discussed the DHCPv6 client behaviour in Windows Vista. A few customers who’re evaluating IPv6 in Windows Vista responded asking about the support for DHCPv6 Prefix Delegation and/or asked why the Vista DHCPv6 client  doesn’t request an IPv6 subnet prefix by default. In most cases, this question came from Japan where users…


Configuring lease time

What should be my lease time or How do I select my lease time? This is very common debate that I keep having with my collogues and I am sure this question must be haunting many dhcp admin’s mind as well. Lease time can be as low as 15 minutes( tech. it can be in order…


DHCPv6 Stateless and Stateful Server in Windows Server 2008

In Windows Server 2008 (WS08), Microsoft has introduced DHCPv6 functionality to the DHCP server.   In Windows Server 2008 (previously known as “Longhorn” Server) Beta 2, we released the DHCPv6 Stateless Server functionality. In Beta 3, we are introducing the DHCPv6 Stateful Server functionality. As I explained in my previous post DHCPv6 behaviour in Windows Vista,…


DHCPv6 Behaviour in Windows Vista

Windows Vista introduces support for DHCPv6. The DHCPv6 client implementation in Windows Vista is compliant with RFC 3315. It supports 2 modes of operation: a stateless mode and a stateful mode of operation.   DHCPv6 Stateless mode is where the host uses a non-DHCPv6 method to obtain an IPv6 address, and uses DHCPv6 only to obtain…


NAP related discussion

Happy New Year Friends.Here is the forum to discuss about NAP. http://forums.microsoft.com/TechNet/ShowForum.aspx?ForumID=576&SiteID=17What ever the question you have regarding NAP can be posted here. Experts will answer your question. -RamaSubbu SKDHCP-NAP


Order of precedence

IPv4: DHCPServer leases IP address to the client in the following order of precedence. Checks for scopes available/defined for the subnet from which the client request has come. If available Checks for any reservation, if defined issues the reserved IPaddress. If not Checks for any free IPaddress within the scope range defined excluding the exclusions. The…