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Viewing and modifying properties of a network or network alias


You can use the Networks Network View page to view all properties of a network or network alias. You can also use this panel to modify any configurable properties of a network or network alias.

You can use the Networks Node View page to view the network name, IPv4 and IPv6 subnets, and node IP address assignments that are defined for each existing network on the HCP system. You can also use this panel to modify the network IP address assignments that are defined for each node for each existing network on the HCP system.

You can use either the Networks All Zone Definitions page or the Networks Network View page to view the DNS zone definition that HCP uses for a network:

Use the Networks Network View page to view the DNS zone definition that HCP uses for a specific network.

Use the Networks All Zone Definitions page to view the DNS zone definitions that HCP uses for all existing networks.

© 2015, 2019 Hitachi Vantara Corporation. All rights reserved.

Viewing properties of a network or network alias on the Network View page


To use the Networks Network View page to view the properties of a network or network alias, click on its name in the network list. The properties of the network or network alias are displayed on three separate panels: Settings, IP Configuration, and Zone Definitions.

If there are no alerts associated with a network or network alias, when you click on its name to view its properties, the Settings panel opens. If an alert is associated with a network or network alias, when you click on its name to view its properties, the panel that opens is the one used to display the configuration settings that you need to change to fix the problem indicated by the alert.

You can use the tabs at the top of each panel to navigate between the three panels. To display a specific panel, click on the corresponding tab.

The next three sections list the network and network alias properties that are displayed on the Settings, IP Configuration, and Zone Definitions panels, respectively.

© 2015, 2019 Hitachi Vantara Corporation. All rights reserved.

Network and network alias properties displayed on the Settings panel


The Settings panel displays different properties for networks and network aliases.

For a network, the Settings panel displays these properties:

The name of the network.

Whether the network is enabled or disabled.

The network description (if configured).

The maximum transmission unit (MTU) used for the network.

The domain associated with the network. (For more information, see Network domains.)

The total number of tenant references defined for the network or network alias. This is the number of tenants that are configured to use the network for data access, management, or both purposes.

The tenant reference list for the network or network alias. This list contains the names of the tenants that are configured to use the network and the purpose for which each tenant uses the network (data access, management, or both purposes).

The total number of alias references defined for the network. This is the total number of aliases that point to the network.

The alias reference list for the network. This list contains the names of the network aliases that have been defined for the network.

The downstream DNS configuration settings for the network. (For more information on these settings, see Downstream DNS configuration settings for networks.)

The advanced Downstream DNS Configuration settings for the network, if the mode is enabled. For more information on these settings, see Advanced downstream DNS configuration.

For a network alias, the Settings panel displays these properties:

The name of the network alias.

The name of the targeted network. This is the network that the alias points to.

The total number of tenant references defined for the network alias. This is the number of tenants for which the alias is selected as the data access network, the management network, or both networks.

The tenant reference list for the network alias. This list contains the names of the tenants for which the alias is selected as the data access network, the management network, or both networks.

The following properties of the targeted network:

oThe network description (if configured).

oThe maximum transmission unit (MTU) used for the network.

oThe domain associated with the network. (For more information, see Network domains.)

oThe total number of alias references defined for the network. This is the total number of aliases that point to the network.

oThe alias reference list for the network. This list contains the names of the network aliases that have been defined for the network.

oThe downstream DNS configuration settings for the network. (For more information on these settings, see Downstream DNS configuration settings for networks.)

© 2015, 2019 Hitachi Vantara Corporation. All rights reserved.

Network and network alias properties displayed on the IP Configuration panel


When you click on the name of a network in the network list, the IP Configuration panel displays the IP configuration properties defined for that network.

When you click on the name of a network alias in the network list, the IP Configuration panel displays the IP configuration properties defined for the targeted network (that is, the IP configuration properties defined for the network that the alias points to).

The IP Configuration panel displays these properties for a network or for the targeted network of an alias:

The IP Mode settings that are used for the network. These settings determine whether the network supports IPv4 addresses, IPv6 addresses, or both.

In the IP Mode section on the panel, if IPv4 is selected, then the network supports IPv4 addresses, and the IP Configuration panel displays these properties:

oThe IPv4 gateway and subnet mask that are defined for the network.

oThe IPv4 subnet that is defined for the network. HCP derives the IPv4 subnet from the IPv4 gateway and subnet mask that are configured for the network.

oThe IPv4 addresses that are assigned to the nodes that are included in the network (if any). These addresses must be on the IPv4 subnet defined for the network.

If IPv6 is selected, indicating that the network supports IPv6 addresses, the IP Configuration panel displays these properties:

oThe primary IPv6 gateway and the primary IPv6 address prefix length that are defined for the network.

oThe primary IPv6 subnet that is defined for the network. HCP derives the primary IPv6 subnet for the network from the IPv6 gateway and IPv6 address prefix length that are configured for the network.

oThe primary IPv6 addresses that are assigned to the nodes that are included in the network (if any). These addresses must be on the primary IPv6 subnet defined for the network.

oWhether or not a secondary IPv6 subnet is defined for the network.

oIf a secondary IPv6 subnet is defined for the network, the IP Configuration panel displays these additional properties:

The secondary IPv6 gateway and the secondary IPv6 address prefix length that are defined for the network.

The secondary IPv6 subnet that is defined for the network. HCP derives the secondary IPv6 subnet for the network from the IPv6 gateway and IPv6 address prefix length that are configured for the network.

The secondary IPv6 addresses that are assigned to the nodes that are included in the network. These addresses must be on the secondary IPv6 subnet defined for the network.

A list of nodes that do not have any IPv4 or IPv6 addresses assigned to them for the network. These nodes are not included in the network.

© 2015, 2019 Hitachi Vantara Corporation. All rights reserved.

Network and network alias properties displayed on the Zone Definitions panel


HCP automatically creates and maintains a DNS zone definition for the network domain used for each network defined on the system.

When you click on the name of a network in the network list, the Zone Definitions panel displays the DNS zone definition that HCP uses for that network.

When you click on the name of a network alias in the network list, the Zone Definitions panel displays the DNS zone definition that HCP uses for the targeted network (that is, the DNS zone definition that HCP uses for the network that the alias points to).

For more information on viewing the DNS zone definitions that HCP uses for a specific network or for all existing networks, see Viewing the DNS zone definition for a network domain.

© 2015, 2019 Hitachi Vantara Corporation. All rights reserved.

Viewing properties of a network on the Node View page


To use the Networks Network View page to view the properties of a network or network alias, click on its name in the network list. The properties of the network or network alias are displayed on three separate panels: Settings, IP Configuration, and Zone Definitions.

If there are no alerts associated with a network or network alias, when you click on its name to view its properties, the Settings panel opens. If an alert is associated with a network or network alias, when you click on its name to view its properties, the panel that opens is the one used to display the configuration settings that you need to change to fix the problem indicated by the alert.

You can use the tabs at the top of each panel to navigate between the three panels. To display a specific panel, click on the corresponding tab.

The next three sections list the network and network alias properties that are displayed on the Settings, IP Configuration, and Zone Definitions panels, respectively.

© 2015, 2019 Hitachi Vantara Corporation. All rights reserved.

Viewing the DNS zone definition for a network domain


If you’re using DNS for domain name resolution, you need to add each domain you associate with a network to your DNS. If the domain for the network you’re using for replication is shared with other networks, you need to add this additional domain to the DNS:

replication.admin.replicaton-network-domain-name

You can use either the Networks All Zone Definitions page or the Networks Network View page to view the DNS zone definition that HCP uses for a network:

Use the Networks Network View page to view the DNS zone definition that HCP uses for a specific network.

Use the Networks All Zone Definitions page to view the DNS zone definitions that HCP uses for all existing networks.

The DNS zone definition for each network domain is displayed in the format used for DNS zone definitions on Unix DNS servers. To add a network domain to your DNS, you can copy its DNS zone definition directly from the HCP System Management Console into your DNS.

If hidden master or notify is enabled for a network, the domain associated with that network is defined as a slave zone. Otherwise, the network domain is defined as a stub zone.

For more information on configuring DNS domains for HCP, see Configuring DNS for HCP.

© 2015, 2019 Hitachi Vantara Corporation. All rights reserved.

Viewing the DNS zone definition for a specific network


To display the DNS zone definition for the domain associated with a specific network:

1.On the Networks Network View page, in the network list, click on the name of the network for which you want to display the DNS zone definition, or click on the name of an alias that points to that network.

2.At the top of the panel that opens, click on the Zone Definitions tab.

The Zone Definitions panel opens. This panel shows the slave or stub zone definition that HCP uses for the network domain, formatted as shown in this example:

# net5 Network for Customer-1
zone "object-store.cust1.com" IN {
    type slave;
     file "/var/named/slave/object-store.cust1.com";
    masters {
         192.168.10.101;
         2001:0db8::101 ;
         192.168.10.102;
         2001:0db8::102;
         192.168.10.103;
         2001:0db8::103;
         192.168.10.104;
         2001:0db8::104;
     };
};

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Tip: You can use the Zone Definition link on the Replication page to show the zone definition for a user-defined network that’s selected for replication. For more information on this, see Replicating Tenants and Namespaces.

© 2015, 2019 Hitachi Vantara Corporation. All rights reserved.

Viewing the DNS zone definitions for all existing networks


To display the DNS zone definitions for all network domains defined on the HCP system, go to the Networks All Zone Definitions page.

The Networks All Zone Definitions page shows the DNS zone definitions that HCP uses for all existing network domains.

© 2015, 2019 Hitachi Vantara Corporation. All rights reserved.

Considerations for modifying properties of networks and network aliases


The following considerations apply to modifying properties of networks and network aliases:

You can modify only the configurable properties of a network or network alias. You cannot modify any property that has a value that’s generated or derived by HCP.

You cannot change the name of a network while that network is associated with a tenant or referenced by an alias. You cannot change the name of an alias while that alias is associated with a tenant.

You cannot change a network to an alias or an alias to a network.

When you take any of these actions for a network, communication on that network is temporarily disrupted:

oModify the VLAN ID or MTU. However, in the case of MTU, applications may not notice the disruption.

oModify the IPv4 gateway or netmask (if defined)

oModify the primary or secondary IPv6 gateway or IPv6 address prefix length (if defined)

oAdd or remove all settings for the secondary IPv6 configuration, including the gateway, prefix length, and node IP addresses

oDisable support for IPv4 addresses, which automatically removes all IPv4 configuration settings, including the gateway, subnet mask, and node IP addresses. (Removing all these settings automatically disables support for IPv4 addresses.)

oDisable support for IPv6 addresses, which automatically removes all IPv6 configuration settings, including the gateway, prefix length, and node IP addresses for the primary IPv6 subnet and, if defined, for the secondary IPv6 subnet. (Removing all these settings automatically disables support for IPv6 addresses.)

oAdd or remove the IP address assignments for one or more nodes.

The following considerations apply to modifying the IP Configuration settings for a network:

oThe [hcp_system] network IP mode determines the IP modes that are supported for user-defined networks:

You can configure a network to use a specific type of IP address (IPv4 or IPv6) only if the [hcp_system] network is also configured to use that type of IP address. However, If the [hcp_system] network is configured to use both IPv4 and IPv6 addresses, you can configure a network to use only IPv4 addresses, only IPv6 addresses, or both types of IP addresses.

If the [hcp_system] network is configured to use IPv6 addresses, you can configure a network to use a primary IPv6 subnet and, optionally, a secondary IPv6 subnet. The number of IPv6 subnets that are defined for the [hcp_system] network does not affect the number of IPv6 gateways that can be defined for a user-defined network.

oTo configure a network to use an IPv4 subnet, you need to define both the gateway and the subnet mask for that IPv4 subnet.

oYou can assign IPv4 addresses to nodes for a network only if an IPv4 subnet is defined for that network. All IPv4 addresses defined for a network must be on the IPv4 subnet defined for that network.

oTo configure a network to use an IPv6 subnet (whether it’s a primary or secondary IPv6 subnet), you need to define both the gateway and the prefix length for that subnet.

oA secondary IPv6 subnet can be defined for a network only if a primary IPv6 subnet is also defined for that network.

oWhen hidden master or notify is enabled for a network, if you configure that network to use a secondary IPv6 subnet, you also need to review and, if necessary, modify the list of downstream DNS server IP addresses configured for that network to ensure that each IPv6 address either is on the secondary IPv6 subnet or is routable from the primary IPv6 gateway that’s defined for the network.

oYou can assign primary IPv6 addresses to nodes for a network only if a primary IPv6 subnet is defined for that network. All primary IPv6 addresses defined for a network must be on the primary IPv6 subnet defined for that network.

oYou can assign secondary IPv6 addresses to nodes for a network only if a secondary IPv6 subnet is defined for that network. All secondary IPv6 addresses defined for a network must be on the secondary IPv6 subnet defined for that network.

oTo include a node in a network, you need to assign a separate IP address to that node on each IPv4 and IPv6 subnet that is defined for the network.

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Note: To configure a partial network, you need to ensure that each node in the HCP system either has no IP addresses for the network or has an IP address on every IPv4 and IPv6 subnet that is defined for the network.

Selecting a different domain for a network has no effect on requests currently being serviced over that network. However, in subsequent requests, clients using that network need to specify the new domain name in the request URL.

If the HCP system is configured for DNS and you select a different domain for a network, make sure you change the domain name in the DNS to specify the name of the new domain for the network.

After you select a different domain for a network that’s being used for tenant management, any clients connected to the Tenant Management Console for the applicable tenants at the time of the change need to close all browser windows to clear cookies so they can access the Console using the new domain name.

If you select a different domain for the network that’s used for replication and the other system in the replication pair identifies the current system by its domain name, you need to modify the domain name in the definition of the replication link. Similarly, if you change the node IP addresses for the network that’s used for replication and the other system in the replication pair identifies the current system by its IP addresses, you need to modify the IP addresses in the definition of the replication link.

For the network that’s currently selected for replication, all nodes must have IP addresses. You can change but cannot remove IP addresses for that network.

You can disable or reenable a network at any time. If you disable the network that’s currently selected for replication, the status of all replication links in which the HCP system participates changes to broken, and replication or recovery, as applicable, stops on those links. If you then reenable the network, replication or recovery resumes automatically on those links.

© 2015, 2019 Hitachi Vantara Corporation. All rights reserved.

Modifying a network


You can use the Networks Network View page to view and modify any configurable properties of a network or network alias.

You can use the Networks Node View page to modify the network IP address assignments that are defined for each node for each existing network on the HCP system.

The next two sections provide instructions for modifying a network using the Networks Network View page and using the Networks Node View page, respectively.

© 2015, 2019 Hitachi Vantara Corporation. All rights reserved.

Modifying a network on the Network View panel


To use the Networks Network View page to modify a network:

1.On the Networks Network View page, in the network list, click on the name of the network that you want to modify.

The properties of the network are displayed on three separate panels: Settings, IP Configuration, and DNS Zone Definitions.

If there are no alerts associated with a network, when you click on its name in the network list, the Settings panel opens.

If an alert is associated with a network, when you click on its name in the network list, the panel that opens is the one used to display the network configuration settings that you need to change to fix the problem indicated by the alert.

2.On the panel that opens, either change the settings displayed on the panel or click on the applicable navigation tab to display the panel that has the settings you want to change:

oOn the Settings panel, you can:

Enable or disable the network. To do this, select the applicable option in the Network Status field in the top right corner of the panel.

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Note: If you enable or disable the [HCP_management] network, the HCP system restarts.

Use the fields that are displayed by default to change any of these general network configuration settings: network name, description, domain, and MTU. For instructions, see Creating a network.

If Downstream DNS Configuration basic mode is enabled, display the applicable fields and change the Downstream DNS Configuration settings for the network. For instructions, see Changing the default downstream DNS configuration settings for a network.

If the advanced downstream DNS configuration mode is enabled, display the applicable fields and change the downstream DNS configuration settings for the network. For instructions, see Advanced downstream DNS configuration.

oOn the IP Configuration panel, you can:

Use the Make untagged network and VLAN ID fields to specify whether the network is tagged or untagged and to specify the VLAN ID for a tagged network, respectively. For instructions on using these two fields, see Creating a network.

If HCP is configured to support both IPv4 and IPv6 addresses for user-defined networks, use the fields in the IP Mode section to change the IP mode for the network. For instructions, see Creating a network.

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Note: If you select an IP Mode option that was not previously selected, the IP Configuration panel displays the fields that you need to use to configure the network to use the specified type of IP addresses. If you deselect an option that was previously unselected, the panel hides all IP configuration settings associated with that option.

Depending on the IP mode selected for the network, use the fields in the IPv4 Configuration section, the IPv6 Configuration section, or both sections to specify the IPv4 gateway and subnet mask for the IPv4 subnet and to specify the IPv6 gateway and prefix length for each IPv6 subnet, respectively.

For instructions on using the applicable fields to specify IPv4 and IPv6 subnet configuration information, see Creating a network.

At the bottom of the IP Configuration panel, use the fields in the node IP addresses table, and optionally, use the Calculate Primary and Calculate Secondary buttons below the table to assign IP addresses to each node included in the network. For instructions, see Using the Network View page to configure node IP addresses for a network.

oYou cannot use the Zone Definitions panel to change any network configuration settings.

3.When you finish modifying settings on the selected panel, click on Update Settings at the bottom of the page.

A warning message appears asking you to confirm the changes you’ve made.

4.In the field in the message window, type YES. This is case sensitive.

5.Click on Update Settings.

6.Optionally, to change additional network configuration settings on another panel, click on the applicable navigation tab to display that panel. Then, repeat steps 3-6 above to make the additional changes to the network configuration.

7.When you’re finished making changes to the network configuration, on the go to the Networks Network View page to return to the network list.

© 2015, 2019 Hitachi Vantara Corporation. All rights reserved.

Modifying network IP address assignments for a node on the Node View page


You can use the Networks Node View page to modify the network IP address assignments that are defined for each node for each existing network on the HCP system.

To use the Networks Node View page to modify network IP address assignments for a node:

1.On the Networks Network View page, in the node list, click on the number of one of the nodes for which you want to modify network IP address assignments.

2.On the panel that opens, use the fields in the Network Settings table, and optionally, use the buttons in the Calculate IPv6 Addresses section above the table to assign IP addresses to the node for each network in which you want to include that node. For instructions, see Using the Network View page to configure node IP addresses for a network.

3.When you finish modifying the network IP address assignments for the node, click on Update Settings at the bottom of the page.

A warning message appears asking you to confirm the changes you’ve made.

4.In the field in the message window, type YES. This is case sensitive.

5.Click on Update Settings.

© 2015, 2019 Hitachi Vantara Corporation. All rights reserved.

Modifying a network alias


You can use the Networks Network View page to change the name of the alias or to select a different targeted network for the alias (that is, configure the alias to point to a different network.

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Note: When you click on the name of a network alias in the network list, you can view the configuration settings used for the targeted network, but you cannot change them.

To change the name or to change the targeted network of a network alias:

1.On the Networks Network View page, in the network list, click on the name of the network alias that you want to modify.

2.Take one of these actions:

oIf the Settings panel opens, go to step 4.

oIf the IP Configuration panel opens, click on the Settings tab at the top of the panel to display the Settings panel.

3.On the Settings panel, take one or both of these actions:

oTo change the name of the alias, edit the text in the Network Alias Name field.

oTo change the targeted network for the alias:

a.Select Switch targeted network.

The panel displays the Aliased Network field, showing the name of the network that the alias currently points to.

b.In the Aliased Network field, select the new targeted network for the alias.

4.Click on Update Settings.

A warning message appears asking you to confirm the changes you’ve made.

5.In the field in the message window, type YES. This is case sensitive.

6.Click on Update Settings.

© 2015, 2019 Hitachi Vantara Corporation. All rights reserved.