Netgear GSM4248P User Manual - Page 190
VLANs, Manage the VLAN configuration on the switch, Add a VLAN
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AV Line of Fully Managed Switches M4250 Series Main User Manual VLANs Adding virtual LAN (VLAN) support to a Layer 2 switch offers some of the benefits of both bridging and routing. Like a bridge, a VLAN switch forwards traffic based on the Layer 2 header, which is fast, and like a router, it partitions the network into logical segments, which provides better administration, security, and management of multicast traffic. By default, all ports on the switch are in the same broadcast domain. VLANs electronically separate ports on the same switch into separate broadcast domains so that broadcast packets are not sent to all the ports on a single switch. When you use a VLAN, users can be grouped by logical function instead of physical location. Each VLAN in a network is assigned an associated VLAN ID, which appears in the IEEE 802.1Q tag in the Layer 2 header of packets transmitted on a VLAN. An end station can omit the tag, or the VLAN portion of the tag, in which case the first switch port to receive the packet can either reject it or insert a tag using its default VLAN ID. A port can handle traffic for more than one VLAN, but it can support only one default VLAN ID. You can define VLAN groups stored in the VLAN membership table. Each switch can support up to 1024 VLANs. VLAN 1 is created by default and is the default VLAN of which all ports are members. Manage the VLAN configuration on the switch You can add, change, and delete VLANs, or reset the entire VLAN configuration on the switch to defaults. Add a VLAN You can add multiple VLANs to customize the switch for you network. An internal VLAN is reserved by a port-based routing interface and invisible to the end user. After an internal VLAN is allocated by the port-based routing interface, the VLAN cannot be assigned to a routing VLAN interface. To add a VLAN: 1. Launch a web browser. 2. In the address field of your web browser, enter the IP address of the switch. The login page displays. 3. Click the Main UI Login button. The main UI login page displays in a new tab. 4. Enter admin as the user name, enter your local device password, and click the Login button. Configure Switching Information 190 Main User Manual
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