DHCPv6 Information-Refresh Time Option

DHCPv6 Stateless Clients obtain configuration data from DHCP Server, by sending Information-request messages. The configuration data typically has no associated lifetime, hence there is no information telling a host when to refresh its configuration information. DHCPv6 Information-Refresh time option (Option 32), specified in RFC-4242 allows stateless clients to refresh configuration data periodically. The information refresh…

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DHCPv6 User Class Option

RFC3315 specifies User Class Option for IPv6 hosts. DHCP administrators may define specific user class identifiers to convey information about a client’s software configuration or about its user’s preferences. User classes are created to support the implementation of various scenarios like: To identify various clients in specific site and location. For example the computers and…

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DHCPv6 – Understanding of address configuration in automatic mode and installation of DHCPv6 Server

Understanding of address configuration in automatic mode     Windows Server 2008 and Windows Vista include a DHCPv6-capable DHCP client that will perform stateful address autoconfiguration with a DHCPv6 server. Windows Server 2008 includes a DHCPv6-capable DHCP server.   A host (DHCP Client) can configure itself with an IPv6 address to be used on the…

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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…

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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,…

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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…

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