IPv4 network templates contain a collection of standard settings that can be applied to IPv4 networks. Use network templates to standardize address assignments, reserved address ranges, DHCP ranges, and deployment options for a set of networks. You can create several network templates, but only one template can apply to a network at a time.
You can remove templates from networks and delete network templates. When you remove a template from a network, the settings the template applied to your networks remain in place. After removing the template from a network, future changes to the template do not affect the network. When you delete a network template, the settings the template applied to your networks remain in place.
After changing settings in the template, you can re-apply the template to the networks based on it. For more information, refer to Applying network templates updates.
To create a network template:
- Select the IP Space tab. Tabs remember the page you last worked on, so select the tab again to ensure you're on the Configuration information page.
- From the configuration drop-down menu, select a configuration.
- Under IPv4 Network Templates, click New. The Add IPv4 Network Template page opens.
Under General, set the name for the network template and
determine the location of the network gateway:
- Name—enter a name for the network template.
- Gateway Offset—enter a value for the position of the network gateway. Select from start or from end to offset the gateway from the start or end of the network.
Under Network Structure, define reserved addresses, DHCP
range, or IP group settings. Click the New button and
then use these fields to create a network structure:
Note: IP addresses included in different types of network structures cannot be overlapped. Overlapping IP addresses in different network structures will cause an error.
- Type—select Reserved Addresses, DHCP Range, or IP Group.
- Defined By—select the type of method that will be used to create a DHCP range. This field will only be available when DHCP Range is selected. Depending on the method selected, different values are required in the Offset/Start Offset and Size/End Offset fields.
- Offset/Start Offset—enter a value for the starting position of the address block or DHCP range.
- Size/End Offset—for Reserved Addresses and IP Group types, enter a value for the number of addresses in the address block. For DHCP Range, if you select Offsets, enter a value for the ending position of the DHCP range. If you select Offsets and Size, enter a set value for the size of the DHCP range. If you select Offsets and Percentage, enter a value for the size of the DHCP range in proportion to the parent network size. For example, the value 20 represents 20% of the parent network size.
- Direction—select from
start or from end to offset the
reserved addresses or DHCP range from the start or end of the network.
When you select from start, the offset is counted from the start of the
network and the reserved addresses or DHCP range is counted forward.
When you select from end, the offset is counted from the end of the
network, and the reserved addresses or DHCP range is counted
- In the network 220.127.116.11/24, selecting from start and setting Offset to 10 and Size to 10 creates a range of 10 addresses beginning at 18.104.22.168 and counting forward to 22.214.171.124.
- In the network 126.96.36.199/24, selecting from end and setting Offset to 10 and Size to 10 creates a range of 10 addresses beginning at 188.8.131.52 and counting backward to 184.108.40.206.
- Name—type a descriptive name to describe the purpose of the block. The Name field is mandatory for the IP group type.
Network templates can also contain deployment options, including DHCP Client, DHCP Service, DHCP Vendor, DHCPv4 Raw, DNS Raw, and DNS options, as well as a Start of Authority setting. After creating a network template, click the template’s Deployment Options tab to set these options in the template.
- Click Add or click Add Next.