Network interface settings are located on the Administration > Networking: Network Interfaces page.

The primary interface is used for appliance management. If the appliance is deployed in a server-side out-of-path (OOP) configuration, the primary interface can also be used for the data plane. Primary and in-path interfaces can share the same network subnet. Primary and auxiliary interfaces can’t share the same network subnet.

The auxiliary interface is used only for managing the managed endpoints. This interface can’t be used for an OOP data service. Typically, this interface is used for device-management networks.

You can enable and disable interfaces separately. When configuring an interface, you can choose to have the system automatically obtain the interface’s IP address from a dynamic host configuration protocol (DHCP) server, if one is available. When using DHCP, you can optionally enable Dynamic DNS to have the appliance send its hostname with the DHCP request for registration with Dynamic DNS. For details about host settings, see About host settings.

If you are not using DHCP, you can manually specify IP addresses, subnet masks, and default gateways. The default gateway is set only on the primary interface and must be in the same network as the primary interface. You must set the default gateway for in-path configurations.

IPv4 and IPv6 settings for an interface are configured separately for each interface. The IPv6 Auto-Assigned setting displays the link-local address that is automatically generated when IPv6 is enabled on the underlying interfaces.

When adding a new IPv6 address, use this format: eight 16-bit hex strings separated by colons, 128-bits.

####:##xx:####:0000:0000:x#x#:##x#:####

You don’t need to include leading zeros.

####:##xx:##:0:0:x#x#:x#:####

You can replace consecutive zero strings with double colons (::).

####:##xx:##::x#x#:x#:####

If you add a prefix, the prefix length must be from 0 to 128 and be separated from the address by a forward slash.

####:##xx:##::x#x#:x#:####/60

For each interface, you can set the maximum transmission unit MTU size. The MTU is the largest physical packet size, measured in bytes, that a network can send. The default value is 1500.

After you apply your settings, you can verify whether changes have had the desired effect by reviewing related reports. After this verification, you can write the active configuration that is stored in memory to the active configuration file (or you can save it as any filename you choose).

You can configure static routing in the main routing tables for out-of-path deployments or if your device management network requires static routes. When defining static routes: