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Creating 802.1Q VLANs between Vigor2960 and Cisco SCG300-28PP Switch
Posted by Roy Panetta on 28 April 2016 04:53 PM

Note: This application note will also apply to the Vigor3900 router.

In this guide we will configure two IP subnets in the Vigor2960 router and assign each of them to a VLAN.  The attached Cisco switch is attached to one of the LAN ports on the router. WE will use LAN port 1 on the router to set up a 802.1Q VLAN trunk to the Cisco switch. On the switch we will allocate ports for each VLAN.  The diagram below shows the topology being used.

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Vigor2960 Configuration

Step1: Create VLANS

Go to “LAN>>Switch” Configuration menu in the Vigor2960 and select the 802.1Q VLAN tab.

Create VLAN 10

VLAN 10 is an existing VLAN. Since we will be using LAN port 1 as the 802.1q VLAN trunk connection to the switch, we will not allow untagged packets to LAN port 1. Select VLAN 10 and deselect LAN port 1 as Untagged.

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Create VLAN 105

VLAN 105 will be a new VLAN. Click on Add and enter the VLAN details in the pop up menu.

  1.        Enter 105 for VLAN ID.
  2.        Select LAN_Port_1 for Member
  3.        Select Untag for LAN_Port_1 and add other ports for Untagged
  4.        Click Apply to save

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Router menu should now look like this:

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Step2: Configure LANS

Configure LAN 1

Go to “LAN>>General Setup>>General Setup” Configuration menu in the Vigor2960 and select LAN1 and click on Edit.

Enter the required details (IP address, Subnet Mask, DHCP start and end IP address) as shown below:

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Configure LAN 2

Go to “LAN>>General Setup>>General Setup” Configuration menu in the Vigor2960 and click on Add to add a new LAN.

For this LAN we enter 192.168.105.1 for the IP address with subnet mask 255.255.255.0 and DHCP address range 192.168.105.11 to 192.168.105.252.

Enter the required details (IP address, Subnet Mask, DHCP start and end IP address) as shown below:

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The LAN settings should look like this:

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Step 3: Enable Routing Between LANS

To allow devices from VLAN 10 to be able to communicate with devices on VLAN 105 you will need to enable routing between the LANs

Go to “LAN>>General Setup>>Inter-LAN Route” Configuration menu in the Vigor2960 and select “Enable Routing Between Internal LANs” 

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Cisco Switch Configuration

 

On the Cisco switch we will configure port 1 as the 802.1Q VLAN trunk port.

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Note: Since the default management VLAN is 1 in the Cisco switch it is recommended to make the changes with the PC connected to port 28 as we will not be changing the settings for this port. Later we will change the management VLAN to 10 since the Switch IP address  is 192.168.1.254.

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Step 1

Create VLANs 10 and 105.

VLAN Settings in the Cisco switch should look similar to that shown below:

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Step 2 - Assign Ports to VLANS

Go to VLAN Management>>Port to VLAN Configurationmenu and assign VLAN numbers for each port.

Configure VLAN 10

Port GE1 is selected as Tagged VLAN.

Ports GE2 to GE10 are selected as “Untagged and are assigned to VLAN 10. Ports 11 – 24 are excluded.

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Configure VLAN 105

Port GE1 is selected as Tagged VLAN.

Ports GE11 to GE24 are selected as “UnTaged” and assigned to VLAN 105.  Ports 2 – 10 are excluded. 

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Port VLAN Membership should look as shown below:

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Step 3

Change Management VLAN to be VLAN 10

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Switch Management Interface should look similar to this:

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Testing

Once configuration is completed connect a PC to each VLAN on the switch as shown in the main diagram and verify that the correct DHCP addresses are assigned and devices can ping each other across the VLANs.

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