RRAS: The IPv6 DHCPv6 Relay Agent should be configured with at least one DHCP server

  • Article

Applies To: Windows Server 2008 R2, Windows Server 2012, Windows Storage Server 2012

This topic is intended to address a specific issue identified by a Best Practices Analyzer scan. You should apply the information in this topic only to computers that have had the Network Policy and Access Service (NPAS) Best Practices Analyzer run against them and are experiencing the issue addressed by this topic. For more information about best practices and scans, see Best Practices Analyzer.

Operating System

Windows Server 2012, Windows Server 2008 R2

Product/Feature

Routing and Remote Access Service (RRAS)

Severity

Warning

Category

Configuration

Issue

IPv6 DHCPv6 Relay Agent is enabled, but is not configured with the IPv6 address of a DHCP server.

Impact

IPv6 DHCPv6 Relay Agent must be configured with the address of at least one DHCPv6 server. Without a DHCPv6 server, DHCPv6 Relay Agent has nowhere to relay DHCP messages from clients.

The IPv6 DHCP Relay Agent listens for DHCPv6 broadcast packets sent on a subnet, and forwards them as a unicast packet to a DHCPv6 server on a different subnet. You must configure the IPv6 address of the DHCPv6 server to which the agent forwards the requests.

Resolution

Use 'Routing and Remote Access' in Server Manager to configure one or more DHCP server addresses on the IPv6 DHCPv6 Relay Agent Properties page.

Membership in the local Administrators group, or equivalent, is the minimum required to complete this procedure.

To configure a DHCPv6 server address for the DHCPv6 Relay Agent

  1. Start Server Manager. Click Start, click Administrative Tools, and then click Server Manager.

  2. In the navigation tree, expand Roles, expand Network Policy and Access Services, expand Routing and Remote Access, and then expand IPv6.

  3. Right-click DHCPv6 Relay Agent, and then click Properties.

  4. On the Servers tab, type the IPv6 address for the DHCPv6 server in the Server address box, and then click Add. Add additional DHCP servers for fault tolerance.

  5. Click OK to save your changes.

Additional references

For more information about the DHCPv6 Relay Agent, see Configure the IPv6 DHCP Relay Agent (https://go.microsoft.com/fwlink/?LinkId=157474).

For more about the Routing and Remote Access role service, see Routing and Remote Access (https://go.microsoft.com/fwlink/?linkid=153482) on TechNet, and Routing and Remote Access Service in the Windows Server Technical Library.