HCP System Management Help


Creating a network

You use the Create Network wizard on the NetworksNetwork View page to create a new network on the HCP system. In order to use the wizard, a system administrator needs to have enabled Virtual network management. For more information on Virtual network management, see About the Advanced Setting panel

When you create a new network with the wizard:

The network is enabled by default, but it is initially empty. To make the new network usable, you need to modify the initial network configuration to assign IP addresses to one or more nodes.

For instructions on configuring node IP addresses for a new network, see Assigning IP addresses to nodes for a network.

The network is configured to use the default downstream DNS configuration settings: hidden master is disabled, notify is disabled, and the refresh rate is set to three hours.

For more information about the effects of each setting and for a list of considerations for modifying each setting, see Downstream DNS configuration settings for networks.

For instructions on modifying the default downstream DNS configuration settings after creating a new network, see Changing the default downstream DNS configuration settings for a network.

To create a new network, on the NetworksNetwork View page:

1.Click on the Create Network button above the network list to open the Create Network wizard.

2.On the Settings page in the wizard:

oIn the Network Name field, type a unique name for the network. User-defined network names:

Must be from one through 63 characters long.

Can contain only characters that are valid in DNS hostnames. In English, valid hostnames can contain only alphanumeric characters and hyphens (-).

Cannot start or end with a hyphen.

Cannot contain white space.

Are not case sensitive.

Additionally, the following words are reserved and cannot be used as network names: none, [hcp_system], and [hcp_backend].

oOptionally, in the Description field, type a description of the network. This text can be up to 1,024 characters long and can contain any valid UTF-8 characters, including white space.

oTake one of these actions:

To create an untagged network, select the Make untagged network option. This option is hidden if an untagged network already exists.

To create a tagged network, in the VLAN ID field, type a VLAN ID for the network. Valid values are integers in the range one through 4,094.

The VLAN ID field is greyed while the Make untagged network option is selected.

oIn the MTU field, select 1500 or 9000.

If an untagged network exists, the MTU that you select cannot be larger than the MTU for the untagged network. If you’re creating an untagged network and an existing network has an MTU of 9,000, the network you’re creating must have an MTU of 9,000. For information on untagged networks, see Tagged and untagged networks.

oIn the Domain field, select a domain for the network. The dropdown list does not include domains that have only a CSR and no SSL server certificates.

3.Click on the Next button.

4.On the IP Configuration page in the Create Network wizard, take one of these actions:

oIf HCP is configured to support only one type of IP address, the wizard automatically selects the supported IP mode for the new network and displays the fields that you need to use to specify IPv4 or IPv6 configuration settings for the network.

If the wizard displays the IPv4 Configuration section or the IPv6 Configuration section, go to step 5.

oIf HCP is configured to support both IPv4 and IPv6 addresses, and the [hcp_system] network is configured to use both IPv4 and IPv6 addresses, you can configure the network to use either or both types of IP addresses.

If the wizard displays the IP Mode section, and does not display any warning messages, select one or both options to set the IP mode for the network:

To configure the network to use only IPv4 addresses, select only the IPv4 option. When you select this option, the wizard displays the IPv4 Configuration section.

To configure the network to use only IPv6 addresses, select only the IPv6 option. When you select this option, the wizard displays the IPv6 Configuration section.

To configure the network to use both IPv4 and IPv6 addresses, select both options.

oIf HCP is configured to support both IPv4 and IPv6 addresses, but the [hcp_system] network is configured to use only one type of IP address, you need to configure the new network to use only the type of IP address that the [hcp_system] network uses.

If the wizard displays the IP Mode section, but it also displays a warning message to inform you that the [hcp_system] network is configured to use only one type of IP address, select only the option that corresponds to that type of IP address.

Note: If the wizard displays this warning message, only the supported IP Mode option is selectable. However, you still need to select this option before you can continue specifying configuration settings for the new network.

5.Take either or both of these actions:

oIf the HCP system supports only IPv4 addresses, or if you selected the IPv4 option in step 5 above, then in the IPv4 Configuration section:

In the Gateway field, type the IP address of the gateway that you want to use for the IPv4 subnet.

In the Subnet Mask field, type the subnet mask that you want to use for the IPv4 subnet.

oIf the HCP system supports only IPv6 addresses, or if you selected the IPv6 option in step 5 above, then in the IPv6 Configuration section:

Under IPv6 Address Settings:

In the Gateway field, type the IP address of the gateway that you want to use for the primary IPv6 subnet.

In the Prefix Length field, type the IPv6 address prefix length that you want to use for the primary IPv6 subnet.

Optionally, to configure a secondary IPv6 subnet for the network, under Secondary IPv6 Address Settings:

In the Gateway field, type the IP address of the gateway that you want to use for the secondary IPv6 subnet.

In the Prefix Length field, type the IPv6 address prefix length that you want to use for the secondary IPv6 subnet.

6.Click on the Next button.

7.On the Review page in the Create Network wizard, review the network configuration settings that you entered.

8.Take one of these actions:

oIf the configuration settings that you entered are incorrect:

a.Use the Previous and Next buttons to navigate through the wizard and modify your entries on each page, as necessary.

b.When you have corrected all the configuration errors, use the Next buttons to navigate to the Review page.

c.Click on the Finish button to exit the wizard and create an empty network with the specified configuration.

oIf the configuration settings that you entered are correct, click on the Finish button to exit the wizard and create an empty network with the specified configuration settings.

When you exit the wizard, the Network View panel displays the IP Configuration panel for the new network, showing the IPv4 and IPv6 subnet configuration information that you entered in the Create Network wizard.

You can use the IP Configuration panel to assign IP addresses to one or more nodes for the new network.

For instructions on using the IP Configuration panel to configure node IP addresses for a new network, see Using the Network View page to configure node IP addresses for a network.

Optionally, from the IP Configuration panel, you can click on the appropriate tab to open the Settings panel, and then use the Settings panel to change the default downstream DNS settings for the network.

For instructions on using the Settings panel to view and change the downstream DNS settings for a network, see Changing the default downstream DNS configuration settings for a network.

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