User's Guide

Table Of Contents
hwc_vnsconfiguration.fm
Configuring a VNS
Configuring a Topology
9034530-02,
March 2010
HiPath Wireless Controller, Access Points and Convergence Software V7.11, User Guide 303
3. If you selected Use Relay, the following window displays.
a) in the DHCP Servers box, type the IP address of the DHCP server to
which DHCP discover and request messages will be forwarded for clients
on this VNS. 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 topology settings.
In particular for Routed topologies, 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.)
4. To save your changes, click Save.
6.8.2.3 Defining a next hop route and OSPF advertisement
The next hop definition allows the administrator to define a specific host as the
target for all non-VNS targeted traffic for users in a VNS. The next hop IP
identifies the target device to which all VNS (user traffic) will be forwarded to.
Next-hop definition supersedes any other possible definition in the routing table.
If the traffic destination from a wireless device on a VNS is outside of the VNS, it
is forwarded to the next hop IP address, where this router applies policy and
forwards the traffic. This feature applies to unicast traffic only. In addition, you can
also modify the Open Shortest Path First (OSPF) route cost.
OSPF is an interior gateway routing protocol developed for IP networks based on
the shortest path first or link-state algorithm. Using OSPF, a host that obtains a
change to a routing table or detects a change in the network immediately
distributes the information to all other hosts in the network so that all will have the
same routing table information. The host using OSPF sends only the part that has
changed, and only when a change has taken place.
To define a next hop route and OSPF advertisement:
1. From the main menu, click Virtual Network Configuration. The Virtual
Network Configuration screen is displayed.
2. In the left pane, expand the Topologies pane, then click the routed Topology
you want to define a next-hop route for. The Topology tab is displayed.