Configuring VLAN interfaces

How to configure VLAN interfaces.

Before you begin

Configure the parent interface for the VLAN interface.

About this task

Availability: Only administrators in the default domain with the appropriate permissions.

Normally, IP addresses are fixed configuration. Use Dynamic Host Configuration Protocol (DHCP) or Stateless Address Autoconfiguration (SLAAC) only when you have a reason to obtain addresses dynamically.

Remember: SLAAC creates link-local addresses. When you specify a local address for an IPv6 address, you might need to specify the address with its zone index. For more information, see RFC 4007 - IPv6 Scoped Address Architecture.

When you select an autoconfiguration method, the DataPower® Gateway ignores configuration data about the physical interface.

Attention: Based on a default network setting, the DataPower Gateway blocks nonmanagement traffic when at least one network interface has an invalid configuration. When this situation occurs, only management traffic over Telnet, SSH, web management interfaces, and the XML management interface are supported. Until you correct the problem, the DataPower Gateway cannot accept and process client requests.

Procedure

  1. In the search field, enter vlan.
  2. From the results, click VLAN interface.
  3. Click Add.
  4. In the Name field, enter the name for the configuration.

Define the basic configuration.

  1. Set the administrative state of the configuration.
  2. Optional: In the Comments field, enter a brief, descriptive summary for the configuration.
  3. From the IP address configuration mode list, select how to configure the interface.
  4. Associate the VLAN interface to its parent interface.
    1. Select the type of parent interface, which is Ethernet or link aggregation.
    2. Select the parent interface.
    3. Specify the identifier.
    4. Specify the outbound priority.

Define IP addressing.

  1. In the IP address field, specify the primary IP address and netmask in CIDR format.
  2. Optional: In the Secondary address field, specify secondary IP addresses with their netmask in CIDR format.

Define IP routing.

  1. Optional: In the Default IPv4 gateway and Default IPv6 gateway fields, enter the IP address of the gateway for the specific IP family. When you do not use IPv6 network addresses, do not define a default IPv6 gateway.
  2. Optional: Add static routes to the routing table.

Define standby controls and advanced characteristics.

  1. Optional: On the Standby control tab, enable and define standby controls.
  2. Optional: On the Advanced tab, modify the way that the VLAN interface works within the network.
    • Change the maximum transmission unit (MTU). Its value must be less than its parent interface.
    • For static IPv6 addresses, define duplicate address detection (DAD) and neighbor discovery (ND) behavior.
    • Disable hardware offload.
  3. Click Apply to save changes to the running configuration.
  4. Click Save to save changes to the persisted configuration.