--- title: "Configuring IPv6 Address Ranges" canonical: "https://docs.infoblox.com/space/nios85/35752297/Configuring%20IPv6%20Address%20Ranges" format: markdown --- You can configure IPv6 ranges that are used to delegate IPv6 prefixes only, to assign IPv6 addresses only, or to delegate IPv6 prefixes and assign IP v6 addresses. When you define a DHCP range to delegate prefixes, the prefixes can be outside of the network where they are being defined. IPv6 ranges inherit their properties from their network, so each range in a subnet provides the same set of options to their DHCP clients. Note that when an Infoblox DHCP server grants IPv4 leases, it starts from the last IP address in the range to the first. When the server grants IPv6 leases, it uses an algorithm based on the DUID of the client. # > Macro (anchor) > Macro (anchor) Adding IPv6 Address Ranges To add a an IPv6 address range: 1. Navigate to the IPv6 network to which you want to add an address range, and then select **Range** from the Add drop down menu. or From any panel in the DHCP tab, expand the Toolbar and click **Add** -> **Range** -> **IPv6**. 2. In the *Add* *IPv6* *Range* wizard, select one of the following and click **Next**: - **Add** **IPv6** **Range:** Select this to add an address range from scratch. or - **Add** **IPv6** **Range** **Using** **Template** Click **Select** **Template** and select the template that you want to use. Note that when you use a template to create a DHCP range, the configurations of the template apply to the new range. The appliance automatically populates the address range properties in the wizard. You can then edit the pre-populated properties. For more information, see *[About](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35448512)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35448512)*[IPv6](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35448512)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35448512)*[Range](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35448512)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35448512)*[Templates](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35448512)*[.](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35448512)      3. Complete the following: > Macro (legacy-content) Specify one of the following: > Macro (legacy-content) Complete the following: > Macro (legacy-content) The **Cloud** section appears when the Cloud Network Automation license is installed on the Grid Master. For information, see *[Deploying](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35881011)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35881011)*[Cloud](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35881011)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35881011)*[Network](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35881011)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35881011)*[Automation](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35881011)*. To delegate authority for this range, complete the following: **Delegate**** authority**** from**** the**** Grid**** Master** **Delegate** **To**: This field indicates whether the authority for the range you want to create has already been delegated to a Cloud Platform Appliance. Click **Select** to choose the Cloud Platform Appliance to which you want to delegate authority. The *Member* *Selector* displays only Cloud Platform Appliances in the Grid. Click the member, and Grid Manager displays the member name next to this field. This cloud member now assumes authority for this range, and the Grid Master does not have authority any more. You can also click **Clear** to remove authority delegation from the selected Cloud Platform Appliance and return authority back to the Grid Master.      4. Click **Next** and select one of the following to provide DHCP services for the DHCP range: > Macro (legacy-content)      5. (*Applies** only** to** Network** Insight*) Click **Next** to initiate or disable discovery of the new DHCP range. > Macro (legacy-content) 6. Click **Next** to enter values for required extensible attributes or add optional extensible attributes. For information, see *[Using](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35448912/Managing+Extensible+Attributes#Using Extensible Attributes)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35448912/Managing+Extensible+Attributes#Using Extensible Attributes)*[Extensible](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35448912/Managing+Extensible+Attributes#Using Extensible Attributes)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35448912/Managing+Extensible+Attributes#Using Extensible Attributes)*[Attributes](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35448912/Managing+Extensible+Attributes#Using Extensible Attributes)*[.](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35448912/Managing+Extensible+Attributes#Using Extensible Attributes) 7. Save the configuration and click **Restart** if it appears at the top of the screen. or Click the Schedule icon at the top of the wizard to schedule this task. In the *Schedule **Change* panel, enter a date, time, and time zone. For information, see *[Scheduling](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35446174)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35446174)*[Tasks](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35446174)*. # > Macro (anchor) > Macro (anchor) Setting the Priority of IPv6 Address Ranges The DHCP server allocates IP addresses from the configured DHCP ranges according to the order in which the ranges are listed. By default, ranges are listed according to their start addresses. You can move the ranges up and down in the list to change their order. For information about viewing DHCP ranges and other objects in a network, see *[Viewing](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35817355)* *[IPv6](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35817355)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35817355)*[DHCP](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35817355)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35817355)*[Objects](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35817355)*. To change the order of DHCP ranges in a network: 1. From the **Data** **Management** tab, select the **DHCP** tab -> **Networks** tab -> *network*. 2. Expand the Toolbar and click **Order** **DHCP** **Ranges**. 3. In the *Order* *DHCP* *Ranges* dialog box, click the up and down arrows to move ranges up or down on the list. The Priority value changes accordingly. Click **OK** to save the configuration. # > Macro (anchor) > Macro (anchor) > Macro (anchor) Modifying IPv6 Address Ranges To modify an IPv6 address range: 1. From the **Data** **Management** tab, select the **DHCP** tab -> **Networks** tab -> **Networks** -> *network* -> *addr_range* checkbox, and then click the Edit icon. 2. The *DHCP* *Range* editor contains the following basic tabs from which you can modify data: - **General**: Modify the fields, except the network address, as described in *[Adding](https://infoblox-docs.atlassian.net/wiki/spaces/nios85draft/pages/26477999)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85draft/pages/26477999)*[IPv6](https://infoblox-docs.atlassian.net/wiki/spaces/nios85draft/pages/26477999)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85draft/pages/26477999)*[Address](https://infoblox-docs.atlassian.net/wiki/spaces/nios85draft/pages/26477999)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85draft/pages/26477999)*[Ranges](https://infoblox-docs.atlassian.net/wiki/spaces/nios85draft/pages/26477999)*[.](#) When the Cloud Network Automation license is installed on the Grid Master, Grid Manager displays the following information in the **Cloud** section: **Cloud** **Usage**, **Owned** **By**, and **Delegated** **To**. You cannot modify these fields. For more information, see *[Adding](https://infoblox-docs.atlassian.net/wiki/spaces/nios85draft/pages/26477999)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85draft/pages/26477999)*[IPv6](https://infoblox-docs.atlassian.net/wiki/spaces/nios85draft/pages/26477999)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85draft/pages/26477999)*[Address](https://infoblox-docs.atlassian.net/wiki/spaces/nios85draft/pages/26477999)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85draft/pages/26477999)*[Ranges](https://infoblox-docs.atlassian.net/wiki/spaces/nios85draft/pages/26477999)*. > Macro (legacy-content)      3. Optionally, you can click **Toggle ****Advanced**** Mode** to display the following tabs from which you can modify advanced data. > Macro (legacy-content) Note that Grid Manager displays both the basic and advanced mode tabs the next time you log in to the GUI.      4. Save the configuration and click **Restart** if it appears at the top of the screen. or Click the Schedule icon at the top of the wizard to schedule this task. In the *Schedule** Change* panel, enter a date, time, and time zone. For information, see *[Scheduling](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35446174)*[ ](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35446174)*[Tasks](https://infoblox-docs.atlassian.net/wiki/spaces/nios85/pages/35446174)*. # > Macro (anchor) > Macro (anchor) Deleting IPv6 Address Ranges To delete an IPv6 address range: - From the **Data** **Management** tab, select the **DHCP** tab -> **Networks** tab -> **Networks** -> *network* -> *addr_range* checkbox, and then click the Delete icon.