# Create VLAN

### 1. Summary

In this page you can create or delete VLANs, and change the IP address.

### 2. Top page

This is the top page for creating a VLAN.

#### 2.1. VLAN list

- Information for the defined VLANs is displayed

  - IPv4 primary address is displayed in bold.

- A maximum of 20 items can be displayed for one page. Press or or enter a numeric value to switch between pages.

- You can press the sort switch to sort by each item.

- Press the "New" button to access a page where you can create a new VLAN

- Press the "Setting" button to access a page where you can change the settings of the selected VLAN

- If you press the "Delete" button, all VLANs whose check box has a check mark will be deleted

  - The following VLAN cannot be deleted

    - Default VLAN ( VLAN ID = 1 )

    - Private VLAN

- Up to 256 VLANs can be created including the default VLAN (VLAN ID == 1).

### 3. VLAN settings page

In this page you can create a new VLAN or edit the settings of an already-defined VLAN.
Enter the settings, and then press the "Confirm" button.
If there are no mistakes in the input content of the confirmation screen, press the "OK" button.

#### 3.1. VLAN settings

- VLAN ID

  - To create a new VLAN, enter the desired VLAN ID within the valid range (2—​4094)

    - The smallest ID of the unregistered VLAN IDs is entered as the default value

    - If an already-registered VLAN ID is entered, it is handled as a change in settings

  - When changing the settings, it is not possible to change the VLAN ID

- Name

  - Specify the name of the VLAN using up to 32 single-byte alphanumeric characters and symbols.

    - The default VLAN (VLAN ID == 1) cannot be renamed

    - A space and "?" cannot be used in the name of the VLAN.

- Frame transmission

  Select frame forwarding from the following items.

  - Enable frame transmission

  - Disable frame transmission

    - Frame forwarding cannot be disabled for the default VLAN (VLAN ID == 1)

- IPv4 address

  - For IPv4 addresses, you can specify one primary address and up to 4 secondary addresses for each VLAN.

  - You can set up to 8 of these addresses on the entire system.

  - You can set this item only for VLANs with frame forwarding enabled.

  - Set each address as follows.

    - Primary address

      - Select the IP address setting from the following.

        - Not set

        - Obtain automatically using DHCP

          - Selecting the check box for "Setting the link local address when auto-acquire does not work" will enable the Auto IP function.

            - The Auto IP function can be enabled for only one VLAN.

          - You cannot select this item if the stack port is set to use Auto IP.

          - You can specify a host name to notify the DHCP server.

        - Specify a fixed IP address

          - Enter the IP address and subnet mask

          - You can set description or note about the IP address as a label.

      - If you select Obtain automatically using DHCP or Specify a fixed IP address, the various server configurations are changed for the VLAN that you configure as follows.

        - You can access the HTTP server and the TELNET server from the VLAN interface. (To enable access to the SSH server and the TFTP server, you need additional configurations.)

        - No changes are made to the configuration of a server that already has 8 VLAN interfaces registered.

    - Secondary address

      - Enter the following settings in the table.

        - Address

          - Enter the IP address and subnet mask

        - Label

          - You can set description or note about the IP address as a label.

      - Press the icon to add a configuration form.

      - Press the "Delete" button to delete a configuration form.

- IPv6 address

  - For IPv6 addresses, you can specify up to 5 global addresses and one link-local address for each VLAN.

  - You can set up to 8 of these addresses on the entire system.

  - The IPv6 address cannot be configured when the stack function is enabled.

  - Select whether the IPv6 address will be enabled or disabled from the following items.

    - Disable IPv6

    - Enable IPv6

  - If you select Enable IPv6, the various server configurations are changed for the VLAN that you configure as follows.

    - You can access the HTTP server and the TELNET server from the VLAN interface. (To enable access to the SSHserver and the TFTP server, you need additional configurations.)

    - No changes are made to the configuration of a server that already has 8 VLAN interfaces registered.

  - Set each address as follows.

    - Global address

      - Enter the following settings in the table.

        - Address

          - Select from the following items.

            - Obtain automatically using RA

            - Specify the address

            - Specify the address (DHCPv6-PD)

            - Obtain automatically using DHCPv6

          - If you select Obtain automatically using RA, you can select whether to operate by DHCPv6 stateless.

          - If you select Specify the address, enter the following items.

            - Address

              - Enter the IP address and subnet mask

          - If you select Specify the address (DHCPv6-PD), enter the following items.

            - Prefix name

              - You can select from the prefix names set in DHCPv6-PD client function.

            - Low address

              - Set the lower part (rest) for the prefix obtained by DHCPv6-PD client.

              - You need to specify "0" for the prefix part obtained by DHCPv6-PD client.

          - Enter the IP address and subnet mask

      - Configuration notes

        - You cannot specify "Obtain automatically using RA" and "Obtain automatically using DHCPv6" in global address at the same time.

      - Press the icon to add a configuration form.

      - Press the "Delete" button to delete a configuration form.

    - Link local address

      - Enter an IP address.

- DHCPv6-PD client function

  - You can enable DHCPv6-PD client function and configure it to request prefix assignment.

  - You can enable up to 8 interfaces for the entire device.

  - Enter a prefix name if you enable this function.

    - Prefix name is the name you attach to the prefix assigned by DHCPv6 client.

    - You can use single-byte alphanumeric characters, dot (.), hyphen (-), and underline (_).

    - You can set up to 32 characters.

  - Configuration notes

    - You cannot configure settings when IPv6 is disabled.

    - You cannot configure DHCPv6-PD client function when the stack function is enabled.

    - DHCPv6-PD client function cannot be enabled when "Obtain automatically using RA (Enabled DHCPv6 stateless)" or "Obtain automatically using DHCPv6"setting is included in global address.

- MTU

  - Specify the maximum packet length (MTU value) that the VLAN interface can send.

  - You can specify up to 7 different values other than the default value for the entire device.

  - The input range of MTU is as follows.

    - 68 - 9216 when IPv6 is disabled

    - 1280 - 9216 when IPv6 is enabled

  - When changing the MTU, adjust the MRU aswell. If the received frame exceeds the MRU size, the frame is discarded without being forwarded.

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