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VLANs allow network administrators to group hosts together even if the hosts are not on the same network switch. This can greatly simplify network design and deployment, because VLAN membership can be configured through software. Without VLANs, grouping hosts according to their resource needs necessitates the labor of relocating nodes or rewiring data links. It also has benefits in allowing networks and devices that must be kept separate to share the same physical cabling without interacting, for reasons of simplicity, security, traffic management, or economy. For example, a VLAN could be used to separate traffic within a business due to users, and due to network administrators, or between types of traffic, so that users or low priority traffic cannot directly affect the rest of the network's functioning. Many Internet hosting services use VLANs to separate their customers' private zones from each other, allowing each customer's servers to be grouped together in a single network segment while being located anywhere in their datacenter. Some precautions are needed to prevent traffic "escaping" from a given VLAN, an exploit known as VLAN hopping.
 
VLANs allow network administrators to group hosts together even if the hosts are not on the same network switch. This can greatly simplify network design and deployment, because VLAN membership can be configured through software. Without VLANs, grouping hosts according to their resource needs necessitates the labor of relocating nodes or rewiring data links. It also has benefits in allowing networks and devices that must be kept separate to share the same physical cabling without interacting, for reasons of simplicity, security, traffic management, or economy. For example, a VLAN could be used to separate traffic within a business due to users, and due to network administrators, or between types of traffic, so that users or low priority traffic cannot directly affect the rest of the network's functioning. Many Internet hosting services use VLANs to separate their customers' private zones from each other, allowing each customer's servers to be grouped together in a single network segment while being located anywhere in their datacenter. Some precautions are needed to prevent traffic "escaping" from a given VLAN, an exploit known as VLAN hopping.
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This chapter is an overview of the '''VLAN''' function of '''RUT''' devices.
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This chapter is an overview of the '''VLAN''' function of '''RUT2xx''' devices.
    
==VLAN Networks==
 
==VLAN Networks==
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The VLAN Networks tab is used to enable Port based or Tag based VLAN.
 
The VLAN Networks tab is used to enable Port based or Tag based VLAN.
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[[Image:Network vlan vlan networks.PNG]]
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[[Image:Networking rut2xx manual vlan mode.png|border]]
    
As you can see in the image above, VLAN is disabled by default. To enable VLAN functionality, select either Port based or Tag based VLAN mode.
 
As you can see in the image above, VLAN is disabled by default. To enable VLAN functionality, select either Port based or Tag based VLAN mode.
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Port based VLAN is a method to create separate LAN networks on different LAN ports. The method is pretty simple: first you have to configure an [[#LAN_Networks|alternate LAN network]], then you have you to choose which LAN port (s) will provide addresses for that network. More detailed information is provided in the table below.
 
Port based VLAN is a method to create separate LAN networks on different LAN ports. The method is pretty simple: first you have to configure an [[#LAN_Networks|alternate LAN network]], then you have you to choose which LAN port (s) will provide addresses for that network. More detailed information is provided in the table below.
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[[Image:Network vlan port based.PNG]]
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[[Image:Networking rut2xx manual vlan port based.png|border]]
    
<table class="nd-mantable">
 
<table class="nd-mantable">
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     </tr>
 
     </tr>
 
     <tr>
 
     <tr>
       <td>LAN ports 1 | 2 | 3</td>
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       <td>LAN ports 1 | 2 </td>
 
       <td>On | Off | Tagged; Default: '''On'''</td>
 
       <td>On | Off | Tagged; Default: '''On'''</td>
 
       <td>Selects which LAN ports are to be used with your VLAN. If you check a port as "'''On'''", it will be a part of the network specified in the '''LAN''' section of this tab. If you leave it as "'''Off'''", it will continue to function as before</td>
 
       <td>Selects which LAN ports are to be used with your VLAN. If you check a port as "'''On'''", it will be a part of the network specified in the '''LAN''' section of this tab. If you leave it as "'''Off'''", it will continue to function as before</td>
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     <tr>
 
     <tr>
 
     <td>LAN</td>
 
     <td>LAN</td>
         <td>none | lan | custom; Default: '''lan'''</td>
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         <td>none | lan | custom; Default: '''None'''</td>
 
         <td>Assigns selected LAN ports and wireless access point(s) to a LAN network</td>
 
         <td>Assigns selected LAN ports and wireless access point(s) to a LAN network</td>
 
     </tr>
 
     </tr>
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Multiple VLANs can be used through a single Ethernet port. Tags containing the respective VLAN identifiers indicating the VLAN to which the frame belongs are attached to the individual Ethernet frames.  
 
Multiple VLANs can be used through a single Ethernet port. Tags containing the respective VLAN identifiers indicating the VLAN to which the frame belongs are attached to the individual Ethernet frames.  
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[[Image:Network vlan tag based.PNG]]
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[[Image:Networking rut2xx manual vlan tag based.png|border]]
    
<table class="nd-mantable">
 
<table class="nd-mantable">
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     <tr>
 
     <tr>
 
     <td>LAN</td>
 
     <td>LAN</td>
         <td>none | lan | custom; Default: '''lan'''</td>
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         <td>none | lan | custom; Default: '''None'''</td>
 
         <td>Assigns selected LAN ports and wireless access point(s) to a LAN network</td>
 
         <td>Assigns selected LAN ports and wireless access point(s) to a LAN network</td>
 
     </tr>
 
     </tr>
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The LAN Networks page provides you with the possibility to create alternate LAN instances that will be used with VLAN. One default instance will be already in place and it will have the configurations from your router's main LAN. Regarding other instances, you can configure everything that you could in the main [[LAN]] section, except for the fact that will not be able to use them as the main configuration for your router's LAN.
 
The LAN Networks page provides you with the possibility to create alternate LAN instances that will be used with VLAN. One default instance will be already in place and it will have the configurations from your router's main LAN. Regarding other instances, you can configure everything that you could in the main [[LAN]] section, except for the fact that will not be able to use them as the main configuration for your router's LAN.
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[[Image:Network vlan lan networks.PNG]]
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[[Image:Networking rut2xx manual vlan lan networks.png|border]]
    
To create a new LAN instance, type in a name for it in the '''LAN name''' field and click the '''Add New''' button located next to it. After this you will see that your new instance has appeared in the '''LAN Networks list'''. To configure an instance, click the '''Edit''' button located next to it. The configuration is identical to regular [[LAN|LAN configuration]].
 
To create a new LAN instance, type in a name for it in the '''LAN name''' field and click the '''Add New''' button located next to it. After this you will see that your new instance has appeared in the '''LAN Networks list'''. To configure an instance, click the '''Edit''' button located next to it. The configuration is identical to regular [[LAN|LAN configuration]].
    
[[Category:RUT230 WebUI]]
 
[[Category:RUT230 WebUI]]
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