VLAN Overview. Netgear GS908E

8-Port Gigabit Ethernet Smart Managed Plus Switch Model GS908E

VLAN Overview

Virtual LANs (VLANs) are made up of networked devices that are grouped logically into separate networks.

You can group ports on a switch to create a virtual network made up of the devices connected to the ports.

You can group ports in VLANs using either port-based or 802.1Q criteria:

•

Port-based VLANs. Assign ports to virtual networks. Ports with the same VLAN ID are placed in the same VLAN. This feature provides an easy way to partition a network into private subnetworks.

•

802.1Q VLANs. Create virtual networks using the IEEE 802.1Q standard. 802.1Q uses a VLAN tagging system to determine which VLAN an Ethernet frame belongs to. You can configure ports to be a part of a VLAN.

When a port receives data that is untagged, the data is delivered normally. However, when a port receives data that is tagged for a VLAN, the data is discarded unless the port is a member of that VLAN.

This technique is useful for communicating more securely with devices outside your local network as well as receiving data from other ports that are not in the VLAN. To use an 802.1Q VLAN, you must know the VLAN ID.

Manage Port-Based VLANs

After you activate the port-based VLAN mode (also referred to as the basic VLAN mode), you can add and manage port-based VLANs.

Activate the Port-Based VLAN Mode

By default, all types of VLANs are disabled on the switch. Before you can add and manage port-based

VLANs, you must activate the port-based VLAN mode. This mode is also referred to as the basic VLAN mode.

When you activate the port-based VLAN mode, VLAN 1 is added to the switch and all ports (1 through 8) are members of VLAN 1. This is the default VLAN in the port-based VLAN mode.

To activate the port-based VLAN mode:

1.

Open a web browser from a computer that is connected to the same network as the switch or to the switch directly through an Ethernet cable.

2.

Enter the IP address that is assigned to the switch.

The login page displays.

3.

Enter the switch password.

The default password is password. The password is case-sensitive.

The HOME page displays.

4.

From the menu at the top of the page, select SWITCHING.

The Quality of Service (QoS) page displays.

5.

From the menu on the left, select VLAN.

The VLAN page displays.

Use VLANS for Traffic Segmentation

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8-Port Gigabit Ethernet Smart Managed Plus Switch Model GS908E

6.

In the Port-based VLAN (Basic Mode) section, click the ACTIVATE button.

A pop-up window opens, informing you that the current VLAN settings will be lost.

7.

Click the CONTINUE button.

Your settings are saved and the pop-up window closes. By default, VLAN 1 is added.

Create a Port-Based VLAN

A port-based VLAN configuration lets you assign ports on the switch to a VLAN. The number of VLANs is limited to the number of ports on the switch. In a basic port-based VLAN configuration, ports with the same

VLAN ID are placed into the same VLAN. One port can be a member of multiple VLANs.

By default, all ports are members of VLAN 1.

To create a port-based VLAN:

1.

Open a web browser from a computer that is connected to the same network as the switch or to the switch directly through an Ethernet cable.

2.

Enter the IP address that is assigned to the switch.

The login page displays.

3.

Enter the switch password.

The default password is password. The password is case-sensitive.

The HOME page displays.

4.

From the menu at the top of the page, select SWITCHING.

The Quality of Service (QoS) page displays.

5.

From the menu on the left, select VLAN.

The VLAN page displays.

If you did not yet activate the port-based VLAN mode, see

Activate the Port-Based VLAN Mode

on page

37.

6.

In the Port-based VLAN section, click the ADD VLAN button.

7.

Specify the settings for the new VLAN:

•

VLAN Name. Enter a name from 1 to 20 characters.

•

VLAN ID. Enter a number from 1 to 8.

•

Ports. Select the ports that you want to include in the VLAN through a combination of the following actions:

-

Click the Select All link to add all ports to the VLAN.

-

Click the Remove All link to remove all selected ports from the VLAN.

-

Click the icon for an unselected port to add the port to the VLAN.

-

Click the icon for a selected port to remove the port from the VLAN.

The icon for a selected port displays blue.

Use VLANS for Traffic Segmentation

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8-Port Gigabit Ethernet Smart Managed Plus Switch Model GS908E

Note

If ports are members of the same LAG, you must assign them to the same VLAN.

8.

Click the APPLY button.

Your settings are saved. The new VLAN shows in the Port-based VLAN section.

Change a Port-Based VLAN

You can change the settings for an existing port-based VLAN.

To change a port-based VLAN:

1.

Open a web browser from a computer that is connected to the same network as the switch or to the switch directly through an Ethernet cable.

2.

Enter the IP address that is assigned to the switch.

The login page displays.

3.

Enter the switch password.

The default password is password. The password is case-sensitive.

The HOME page displays.

4.

From the menu at the top of the page, select SWITCHING.

The Quality of Service (QoS) page displays.

5.

From the menu on the left, select VLAN.

The VLAN page displays.

6.

In the Port-based VLAN section, click the down arrow for the VLAN that you want to change.

7.

Click the EDIT button.

8.

Change the settings for the VLAN:

•

VLAN Name. Enter a name from 1 to 20 characters.

•

VLAN ID. Enter a number from 1 to 8.

•

Ports. Select the ports that you want to include in the VLAN through a combination of the following actions:

-

Click the Select All link to add all ports to the VLAN.

-

Click the Remove All link to remove all selected ports from the VLAN.

-

Click the icon for an unselected port to add the port to the VLAN.

-

Click the icon for a selected port to remove the port from the VLAN.

The icon for a selected port displays blue.

Use VLANS for Traffic Segmentation

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