C

L3 Roaming Example

The example in this appendix describes how to configure a D-Link WLAN Controller Switch for a network that needs L3 roaming capabilities. This example contains information about the following features, which might be required to use L3 tunneling on your WLAN:

Configuring the WLAN and Tunnel Interfaces

Configuring the L3 Tunnel Network

Configuring DHCP Relay and the DHCP Server

Setting the MTU Size

Configuring the WLAN and Tunnel Interfaces

The following figure shows an example of a network that uses L3 tunnels to support wireless roaming. The subnet that all clients will use for L3 roaming is 192.168.60.0/24. The configuration examples in the rest of this appendix use the network information in this figure.

Figure 83. Example of a Network with L3 Tunnel Subnet

WS1 VLAN Routing Interface 192.168.60.15

WS1 WLAN (Loopback) Interface 192.168.100.15

 

WS1

 

 

 

 

WS1 Network

WS2 Network

 

WS2 VLAN Routing Interface

 

Interface

 

Call Server

192.168.2.20

Interface

WS2

192.168.60.25

192.168.7.20

 

192.168.60.35

 

 

 

 

 

 

WS2 WLAN (Loopback)

 

 

 

 

 

 

 

 

Interface

 

L3 Network

 

 

192.168.200.15

 

 

 

 

AP1

192.168.18.10

AP2

 

192.168.28.10

Wireless Client

Wireless Client

192.168.60.55

192.168.60.55

Configuring the WLAN and Tunnel Interfaces 187

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D-Link DWS 3000 user manual L3 Roaming Example, Configuring the Wlan and Tunnel Interfaces