User's Manual

hwc_vnsconfiguration.fm
Virtual Network configuration
Topology for a VNS
A31003-W1050-U100-2-7619,
March 2008
HiPath Wireless Controller, Access Points and Convergence Software V5 R1 , C20/C2400 User Guide 173
Using a DHCP relay forces the HiPath Wireless Controller to forward DHCP
requests to an external DHCP server on the enterprise network. This function
bypasses the local DHCP server for the HiPath Wireless Controller and allows the
enterprise to manage IP address allocation to a VNS from its existing
infrastructure.
The range of IP addresses assigned to the wireless device users on this VNS
should also be designated on the external DHCP server.
To use an external DHCP server for the VNS:
1. From the main menu, click Virtual Network Configuration. The Virtual
Network Configuration page is displayed.
2. In the left pane Virtual Networks list, click the VNS you want to use DHCP
relay for. The Topology tab is displayed.
3. From the DHCP Option drop-down list, click Use DHCP Relay.
4. In the Gateway box, type the IP address for the VNS.
5. In the Mask box, type the appropriate subnet mask for this IP address.
6. In the DHCP Server box, type the IP address of the DHCP server to which
DHCP discover and request messages will be forwarded for clients on this
VNS. In the case of relay, the HiPath Wireless Controller does not handle
DHCP requests from users, but instead forwards the requests to the indicated
DHCP server.
Note: The DHCP Server must be configured to match the VNS settings. In
particular for Routed VNS', the DHCP server must identify the HiPath
Wireless Controller's interface IP as the default Gateway (router) for the
subnet. (Users intending to reach devices outside of the subnet will forward
the packets to the default gateway (controller) for delivery upstream.)
6.3.2 Configuring topology for a VNS for AAA
The following sections describe how to configure the topology for a VNS for AAA.
To create an AAA topology:
1. From the main menu, click Virtual Network Configuration. The Virtual
Network Configuration page is displayed.
2. In the left pane Virtual Networks list, click the VNS you want to create an
AAA topology for. The Topology tab is displayed.
3. From the Assignment by drop-down list, click AAA.