VLAN

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The firewall supports the usage of virtual local area networks (VLAN). A VLAN is a virtual network within a physical network. The usage of VLAN is especially in the following cases reasonable:

 

The load of broadcasts in the LAN is getting too high. This can happen especially in Microsoft Windows environments.
A big switched network should be divided up because of security reasons.

 

A solution for the problems above is the usage of VLANs. VLANs can be created at one switch or over several switches and can also be used for multi-site networks. Creating VLANs is not so extensive than using seperated routers and switches to divide the physical networks.

 

How does it work

 

Each VLAN receives an own definite number. This number is called VLAN ID. A device with VLAN ID 1, is able to communicate with every other device in the same VLAN, but not with a device in another VLAN with the ID=2,3,...

 

Physical Interface: Choose the physical interface that should host VLAN interfaces.
Logical Interface: Enter the name of the Interface.
VLAN ID: Assign the VLAN ID for the virtual interface here. Note that you have to assign the VLAN ID to the switch also.
Static IPs: Set the IP address that should be assigned to the new VLAN interface.

 

NOTE: Creating the VLAN interface after clicking the button "Save" can take a few minutes. Please be patient.