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You can create an IPv6 network from scratch or create a network template and then use that template to create one or more networks. Using a network template facilitates creating multiple IPv6 networks with similar properties. You can also create an IPv6 network from the Tasks Dashboard. For information about the Tasks Dashboard, see The Tasks Dashboard.
An IPv6 network inherits its DHCP options & DDNS settings from its shared network, if it is part of a shared network, or from the member to which it is assigned.
If you have enabled support for RIR (Regional Internet Registry) updates and are adding an RIR IPv6 network container or network to NIOS, Grid Manager displays an RIR section in the Add IPv6 Network wizard. You must enter RIR related information in this section in order for NIOS to associate the newly added network with an RIR organization. For more information about RIR address allocation and updates, see RIR Registration Updates.

Adding IPv6 Networks

To add an IPv6 network:

  1. Select the Data Management tab.
  2. If you have more than one network view in the system, select the network view in which you want to add the network.
  3. Select the DHCP tab -> Networks tab.
  4. In the Networks section, click the Add drop-down list and select IPv6 Network.
  5. In the Add IPv6 Network wizard, select one of the following and click Next:
    • Add IPv6 Network: Click this to add an IPv6 network from scratch.
    • Add IPv6 Network using Template: To use a template, click this, and then click Select Template and select an IPv6 network template. For information about network templates, see About IPv6 Network Templates. When you use a template to create a network, the configurations of the template apply to the new network. The appliance populates the template properties in the wizard when you click Next. You can then edit the pre-populated properties. If the template specified a fixed netmask, you cannot edit the netmask.
  6. Complete the following and click Next:
    • Regional Internet Registry: This section appears only when support for RIR updates is enabled. For information about RIR, see RIR Registration Updates. Complete the following to create an RIR IPv6 network container or network:
      • Internet Registry: Select the RIR from the drop-down list. The default is RIPE. When you select None, the network is not associated with an RIR organization.
      • Organization ID: Click Select Organization and select an organization from the RIR Organization Selector dialog box.
      • Registration Status: The default is Not Registered. When adding an RIR allocated network, you can change this to Registered and select the Do not update registrations check box below. Note that when you select API as the communication method, the registration status will be updated automatically after the registration update is completed. However, when you select Email as the communication method, the registration status will not be automatically updated. If you are creating a new network and the registration update is completed successfully, the status will be changed to Registered. If the update fails, the status will be changed to Not Registered. The updated status and timestamp are displayed in the Status of last update field in the IPv6 Network Container or IPv6 Network editor.
      • Registration Action: Select the registration action from the drop-down list. When you select Create, the appliance creates the IPv4 network and assigns it to the selected organization. When you select None, the appliance does not send registration updates to RIPE. When you are adding an existing RIR allocated network to NIOS, select None. When you are adding networks to an RIR allocated network (a parent network), select Create. Ensure that the parent network associated with an RIR organization already exists.
      • Do not update registrations: Select this check box if you do not want the appliance to submit RIR updates to RIPE. By default, the appliance sends updates to the RIR database based on the configured communication method.
    • Network View: This appears only when you have multiple network views. From the drop-down list, select the network view in which you want to create the network.
    • Netmask: Use the netmask slider to select the appropriate number of subnet mask bits for the network. Select /64 as the CIDR, if an IPv6 prefix is unavailable for an IPv6 network. When the prefix is available, you must adjust the slider to the desired netmask as per the CIDR in the prefix.
    • Networks: Do one of the following to add new networks:

Click the Add icon to enter a new network. If you are adding a network for a previously defined global IPv6 prefix, you can select the prefix from the IPv6 Prefix drop-down list. The default is None, which means that you are not creating an IPv6 network for a previously defined subnet route. If you have defined a global prefix at the Grid level, the default is the global prefix value. Click Add and Grid Manager adds a row to the table. Enter the network address in the Network field. When you enter an IPv6 address, you can use double colons to compress a contiguous sequence of zeros. You can also omit any leading zeros in a four-hexadecimal group. For example, the complete IPv6 address 2001:0db8:0000:0000:0000:0000:0102:0304 can be shortened to 2001:db8::0102:0304. Note that if there are multiple noncontiguous groups of zeros, the double colon can only be used for one group to avoid ambiguity. The appliance displays an IPv6 address in its shortened form, regardless of its form when it was entered. Click Add again to add another network. You can also select a network and click the Delete icon to delete it.
Click the Next Available icon to have the appliance search for the next available network. Complete the following in the Next Available Networks section:

      • Create new network(s) under: Enter the network container in which you want to create the new network. When you enter a network that does not exist, the appliance adds it as a network container. When you enter a network that is part of a parent network, the parent network is converted into a network container if it does not have a member assignment or does not contain fixed addresses and host records that are served by DHCP. You can also click Select Network to select a specific network in the Network Selector dialog box. For information about how the appliance searches for the next available network, see Obtaining the Next Available.
      • Number of new networks: Enter the number of networks you want to add to the selected network container. Note that if there is not enough network space in the selected network to create the number of networks specified here, Grid Manager displays an error message. The maximum number is 20 at a time. Note that when you have existing networks in the table and you select one, the number you enter here includes the selected network.
      • Click Add Next to add the networks. Grid Manager lists the networks in the table. You can click Cancel to reset the values.

Note: You must click Add Next to add the network container you enter in the Next Available Networks section. If you enter a network in the Next Available Networks section and then use the Add icon to add another network, the appliance does not save the network you enter in the Next Available Networks section until you click Add Next.

    • Comment: Enter additional information about the network, such as the name of the organization it serves.
    • Automaticallycreatereverse-mappingzone: This function is enabled if the netmask of the network is a multiple of four, such as 4, 8, 12 or 16. Select this to have the appliance automatically create reverse-mapping zones for the network. A reverse-mapping zone is an area of network space for which one or more name servers have the responsibility for responding to address-to-name queries. These zones are created in the DNS view assigned to receive dynamic DNS updates at the network view level.
    • DisableforDHCP: Select this if you do not want the DHCP server to provide DHCP services for this network at this time. This feature is useful when you are in the process of setting up the DHCP server. Clear this after you have configured the server and are ready to have it serve DHCP for this network.

The Cloud section appears when the Cloud Network Automation license is installed on the Grid Master. For information, see Deploying Cloud Network Automation. To delegate authority for this network, complete the following:
Delegate authority from the Grid Master

    • Delegate To: This field indicates whether the authority for the network 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 network, 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.

     7. Click Next and add one or more Grid members as DHCP servers for the network.

    • click the Add icon and select a Grid member from the Member Selector dialog box. Keep in mind, some DHCP properties for the network are inherited from this member. The network can be served by multiple members, but a member can serve networks in one network view only.

8. Click Next to associate Active Directory Sites with the network. For more information, see Associating ActiveDirectory Sites with Networks.

9. (Applies only to Network Insight) Click Next to initiate or disable discovery of the new network(s). Discovery settings differ based on whether you are defining one network or multiple networks.

    • Configuring one network: discovery settings include the following: Enable Discovery and Immediate Discovery, selecting a Probe member to perform the discovery; and Polling Options, which define how the network will be discovered by the Probe member. By default, all Polling Options discovery settings are inherited from the parent network (or Grid, if no parent exists) unless you click Override. Polling Options govern the protocols used to query and collect information about the network devices being discovered.
    • Configuring more than one network: If the networks are child networks, they automatically inherit the settings of the parent network, including discovery settings and the discovery member. These settings will not appear in the wizard page. For discovery of multiple networks, you can only enable or disable Immediate Discovery. Click Next to override the DHCP properties described in Defining General IPv6 Properties.

10. As part of creating a network, you can provision the network on an actual device (switch, router, or switch-router), that is discovered and managed through the Grid Manager.

    • Begin by checking the Enable Network Provisioning check box, and clicking the Select Device button. Choose your device from the Device Selector dialog. (Click Clear to remove the setting. For more information, see the section Using the Device Selector.)
    • If you performed DHCP configuration in the previous step of the Add Network Wizard, the Router IP value will automatically be populated with the DHCP Router IP address value. Otherwise, you enter the standard router IP address.
    • If required for the newly provisioned network to ensure that attached devices receive DHCP auto-configuration, enable the DHCP Forwarding check box. For this setting, if a DHCP Failover was previously configured, the IP addresses defined for DHCP failover are automatically used for the DHCP forwarding configuration.
    • You will also need to choose an interface on the selected device on which to provision the network by selecting it from the Interface drop-down menu. Grid Manager ensures that only those interfaces that can support provisioning, and are available for provisioning (that do not have an Operation Status of Up), appear in the drop-down menu.
    • Otherwise, when creating networks and provisioning them on managed devices, you can create a VLAN on which to provision the network by clicking the Create VLAN option and entering the VLAN Name and VLAN ID. Ensure that the VLAN ID value you enter is appropriate for the application - don't create a new VLAN and provision a network for a VLAN value that is already actively carrying traffic for another routing domain.
      If a selected device does not support VLANs, the Create VLAN option will not appear.

11. Click Next to enter values for required extensible attributes or add optional extensible attributes. For information, see About Extensible Attributes.

If you are adding an RIR network, the RIR network attribute table appears. For information about these attributes and how to enter them, see RIR Network Attributes . You can preview the information before the appliance submits updates to the RIPE database. To preview registration updates, click Preview RIR Submissions. For more information, see Previewing Registration Updates.

Note: You cannot leave an optional RIR attribute value empty. If you do not have a value for an RIR attribute, you must delete it from the table. You can enter up to 256 characters for all RIR attributes.

12. As the final step in the Add IPv6 Network wizard, you define when Grid Manager creates the new network by scheduling it. You also schedule when the associated port control task executes (if a port configuration has been specified).

    • To create the new network and its associated port configuration immediately, select Now. Grid Manager synchronizes the port control task to take place at the same time as the creation of the new network.
    • You can choose to have Grid Manager execute the port control task at the same time as the network creation. To do so, select At same time as above.
    • You can choose to have Grid Manager execute the port control task at a later time by selecting Later. Choose a Selected time by entering or selecting a Start Date (click the calendar icon to choose a calendar date) and a Start Time, and choose a Time Zone.

     13. Choose one of the following from the Save &... drop-down button menu:

    • Click Save & Close to add the new network and close the wizard (this is the default).
    • Click Save & Edit to add the new network and launch the editor.
    • Click Save & New to add the new network and launch the wizard again to add another network.

Note: At any step during the wizard, you can click Schedule for Later to schedule the task. In the Schedule Change
panel, enter a date, time, and time zone. For information, see Scheduling Tasks.

After you create a network, you can do the following:

  • Add it to a shared network. For more information, see Adding IPv6 Shared Networks.
  • Use the split network feature to create subnets for the network. For information, see Splitting IPv6 Networks into Subnets.
  • Use the join networks feature to create a parent network that encompasses multiple subnets into a larger network. For information, see Joining IPv6 Networks. You can also create a shared network for subnets that are on the same network segment.
  • View a list of networks. For more information, see Viewing Networks.

Modifying IPv6 Networks

You can modify existing network settings and override the Grid or member DHCP properties, with the exception of the network address and netmask.
To modify an IPv6 network:

  1. From the Data Management tab, select the DHCP tab -> Networks tab -> Networks -> network check box, and then click the Edit icon.
  2. The IPv6 Network editor contains the following basic tabs from which you can modify data:
    • Genera Basic: You can modify the following fields:
      • Comment: The information you entered for the network.
      • Disabled: This field is displayed only if the selected network is a network without a child network under it. You can disable and enable existing networks instead of removing them from the database, if the selected network does not have a child subnet. This feature is especially helpful when you have to move or repair the server for a particular network.

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 IPv6 Networks.

    • Member Assignment: Add or delete a Grid member that provides DHCP services for this network.
    • IPv6DHCPOptions: Keep the inherited DHCP properties or override them and enter unique settings for the network. For information, see Defining General IPv6 Properties .
    • Discovery: Checking the Enable Discovery check box informs NIOS to begin discovering the network after you click Save and Close. You manage discovery polling settings local to each network from this page. For a complete overview of features on this page, see Discovering Devices and Networks and its subsections.
    • Discovery Exclusions: IP Addresses and IP ranges can be locally excluded from discovery by clicking the Add icon and selecting Add IP Address or Add IP Range. These IP addresses or IP ranges are selected from within the chosen network. For related information, see Excluding IP Addresses from Discovery and its subsections.
    • Discovery Blackout: Define extended time periods and regularly scheduled times when discovery and/or port configuration tasks will not take place on a network. Editing a network under DHCP, blackout settings apply only to the specified network. You also specify the scheduled time when the blackout period begins, and the duration of the blackout period. By default, the network inherits its discovery blackout settings from the Grid level. For related information, see Defining Blackout Periods and its subsections.

Note: Discovery blackout settings also can be defined for DHCP ranges.

    • RIR Registration: Modify RIR network information. This tab appears only when support for RIR updates is enabled. For information, see Modifying RIR Network Data.
    • Extensible Attributes: Add and delete extensible attributes that are associated with a specific network. You can also modify the values of the extensible attributes. For information, see About Extensible Attributes.
    • Permissions: This tab appears only if you belong to a superuser admin group. For information, see Managing Permissions.

     3. Optionally, you can click Toggle Advanced Mode to display the following tabs from which you can modify advanced data.

    • General Advanced: You can associate zones with a network. For information, see Associating Networks withZones.
    • IPv6 DDNS: Keep the inherited DDNS settings or override them and enter unique settings for the network. Note that you must click Override and select Enable DDN Supdates for the DDNS settings you configure in this tab to take effect. For information, see Enabling DDNS for IPv4 and IPv6 DHCP Clients.

Note that Grid Manager displays both the basic and advanced tabs the next time you log in to the GUI.

4. Save the configuration 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 Tasks.

Deleting IPv6 Networks

When you delete a network, all of its data, including all DHCP records, subnets, and records in its subnets, is deleted from the database. Because of the potentially large loss of data that can occur when you delete a network, the appliance stores the deleted network in the Recycle Bin. You can restore a deleted network from the Recycle Bin, if enabled. You can also disable a network instead of deleting it. For information, see Modifying IPv6 Networks.
To delete a network:

  1. From the Data Management tab, select the DHCP tab -> Networks tab -> network check box, and then select Delete or Schedule Delete from the Delete drop-down menu.
  2. To delete the network now, in the Delete Confirmation dialog box, click Yes. To schedule the deletion, see Scheduling Deletions .

The appliance puts the deleted network in the Recycle Bin, if enabled.

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