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10.3.7. Establishing a VLAN Connection
You can use NetworkManager to create a VLAN using an existing interface. Currently, at time of writing, you can only make VLANs on Ethernet devices.
Procedure 10.11. Adding a New VLAN Connection
You can configure a VLAN connection by opening the Network Connections window, clicking , and selecting VLAN from the list.
- Right-click on the NetworkManager applet icon in the Notification Area and click Edit Connections. The Network Connections window appears.
- Click the button to open the selection list. Select VLAN and then click . The Editing VLAN Connection 1 window appears.
- On the VLAN tab, select the parent interface from the drop-down list you want to use for the VLAN connection.
- Enter the VLAN ID
- Enter a VLAN interface name. This is the name of the VLAN interface that will be created. For example, "eth0.1" or "vlan2". (Normally this is either the parent interface name plus "." and the VLAN ID, or "vlan" plus the VLAN ID.)
- Review and confirm the settings and then click the Apply button.
- Edit the VLAN-specific settings by referring to the Configuring the VLAN Tab description below .
Procedure 10.12. Editing an Existing VLAN Connection
Follow these steps to edit an existing VLAN connection.
- Right-click on the NetworkManager applet icon in the Notification Area and click Edit Connections. The Network Connections window appears.
- Select the connection you want to edit and click the Edit button.
- Select the VLAN tab.
- Configure the connection name, auto-connect behavior, and availability settings.Three settings in the Editing dialog are common to all connection types:
- Connection name — Enter a descriptive name for your network connection. This name will be used to list this connection in the VLAN section of the Network Connections window.
- Connect automatically — Check this box if you want NetworkManager to auto-connect to this connection when it is available. See Section 10.2.3, “Connecting to a Network Automatically” for more information.
- Available to all users — Check this box to create a connection available to all users on the system. Changing this setting may require
rootprivileges. See Section 10.2.4, “User and System Connections” for details.
- Edit the VLAN-specific settings by referring to the Configuring the VLAN Tab description below .
Saving Your New (or Modified) Connection and Making Further Configurations
Once you have finished editing your VLAN connection, click the button and NetworkManager will immediately save your customized configuration. Given a correct configuration, you can connect to your new or customized connection by selecting it from the NetworkManager Notification Area applet. See Section 10.2.1, “Connecting to a Network” for information on using your new or altered connection.
You can further configure an existing connection by selecting it in the Network Connections window and clicking Edit to return to the Editing dialog.
Then, to configure:
- IPv4 settings for the connection, click the IPv4 Settings tab and proceed to Section 10.3.9.4, “Configuring IPv4 Settings”.
Configuring the VLAN Tab
If you have already added a new VLAN connection (see Procedure 10.11, “Adding a New VLAN Connection” for instructions), you can edit the VLAN tab to set the parent interface and the VLAN ID.
- Parent Interface
- A previously configured interface can be selected in the drop-down list.
- VLAN ID
- The identification number to be used to tag the VLAN network traffic.
- VLAN interface name
- The name of the VLAN interface that will be created. For example, "eth0.1" or "vlan2".
- Cloned MAC address
- Optionally sets an alternate MAC address to use for identifying the VLAN interface. This can be used to change the source MAC address for packets sent on this VLAN.
- MTU
- Optionally sets a Maximum Transmission Unit (MTU) size to be used for packets to be sent over the VLAN connection.
