Configure interfaces

Create or edit your management and application interfaces.

The appliance supports the use of virtual local area network (VLAN). A VLAN is a logical association of switch ports based on a set of rules or criteria, such as MAC addresses, protocols, network address, or multicast address. This concept permits the LAN to be segmented again without requiring physical rearrangement.

The interfaces with names in the format of 1.x are real interfaces, which correspond to the network adapters on your physical appliance or the adapters that are attached to your virtual appliance. The interfaces with names in the format of 1.x:<vlanid> are virtual interfaces.

We can add or delete virtual interfaces, but we cannot delete real interfaces. When we add an interface, you are effectively adding a VLAN to a specific interface.

This page is not available in the LMI when the appliance runs in a Docker environment.

Steps

1. From the top menu, select System > Network Settings > Interfaces. All current management and application interfaces are displayed.
2. We can add or edit interfaces and addresses associated with an interface.
   • To add an interface:
     1. Click New.
     2. On the General Configuration tab:
        1. Select the type of interface to create. For interfaces of the type Loopback, DHCP and bonding options are not available.
        2. Enter a name for the interface.
        3. Select the Enabled checkbox if we want to enable this interface at the same time when it is created.
        4. Enter the virtual LAN ID for the interface.
        5. Add notes about this interface in the Comment field.
     3. Click Save Configuration to confirm the details of this interface.
   • To modify the details of an interface:
     1. Select the interface from the table.
     2. Click Edit.
     3. Modify the details as needed.
     4. Click Save Configuration to confirm the modified details.
   • To delete a virtual interface:
     1. Select the interface from the table.
     2. Click Delete.
     3. Click Yes to confirm the operation.
   • To add an IP address to an interface:
     1. Select the interface.
     2. Click Edit.
     3. On the IPv4 Settings tab:
        1. If we use DHCP to assign addresses, select Auto.
           1. To make this interface a management interface, select the Management Interface checkbox. To make this interface an application interface, leave this checkbox unchecked.
           2. Select the Provides Default Route if needed.
        2. If we use static addresses, select Manual.
           1. Click New to add an address.
           2. Enter the static address in the Address field in the format of <address>/<mask>. Masks are supported in dot-decimal and CIDR notation, for example:

              10.0.2.38/24
              10.0.2.38/255.255.255.0

3. To use this address for management purposes, select the Management Address checkbox. To use this address for application, leave this checkbox unchecked.
4. By default, the appliance performs validation to ensure that overlapping subnets do not span multiple interfaces. Such validation helps prevent networking issues in certain environments. If we want to disable this validation for the environment, select the Override the Overlapping Subnet Validation option.
5. Click Save Configuration to confirm the details.

On the IPv6 Settings tab:

1. If we use DHCP to assign addresses, select Auto.
   1. To make this interface a management interface, select the Management Interface checkbox. To make this interface an application interface, leave this checkbox unchecked.
2. If we use static addresses, select Manual.
   1. Click New to add an address.
   2. Enter the static address in the Address field in the format of <address>/<mask>. Masks must be given in CIDR notation, for example:

      2001:db8::38/48

   3. To use this address for management purposes, select the Management Address checkbox. To use this address for application, leave this checkbox unchecked.
   4. Click Save Configuration to confirm the details.

To modify an IP address associated with an interface:

1. Select the interface.
2. Click Edit.
3. On the IPv4 Settings and IPv6 Settings tabs, select the address to modify and then click Edit.
4. Modify the settings as needed.
5. In the Edit address window, click Save Configuration to close the window.
6. Click Save Configuration to confirm the interface details.

To delete an IP address associated with an interface:

1. Select the interface.
2. Click Edit.
3. On the IPv4 Settings and IPv6 Settings tabs, select the address to delete and then click Delete.
4. Click Yes to confirm the delete operation.
5. Click Save Configuration to confirm the interface details.

Parent topic: Network Settings