Virtual Network configuration
A31003-W1040-U101-1-7619, July 2006 DRAFT
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HiPath Wireless Controller, Access Points and Convergence Software V4.0, C10/C100/C1000 User Guide
hwc_vnsconfiguration.fm
Topology for a VNS
7.1.1.4
Defining a next hop route and OSPF advertisement for a VNS
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
features 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 appears.
2.
In the left pane Virtual Networks list, click the VNS you want to define a next-hop route for.
The Topology tab is displayed.
3.
In the
Next Hop Address
box, type the IP address of the next hop router on the network
through which you wish all traffic on this VNS to be directed.
4.
In the
OSPF Route Cost
box, type the OSPF cost of reaching the VNS subnet.
The OSPF cost value provides a relative cost indication to allow upstream routers to
calculate whether or not to use the controller as a better fit or lowest cost path to reach
devices in a particular network. The higher the cost, the less likely of the possibility that the
controller will be chosen as a route for traffic, unless that controller is the only possible
route for that traffic.
5.
To disable OSPF advertisement on this VNS, select the
disable OSPF Advertisement
checkbox.
7.1.1.5
Defining the IP address for the VNS (for the DHCP server on the controller)
Bridged at the AP VNSs do not require the definition of a corresponding IP address definition
for the VNS since all traffic for users in that VNS will be directly bridged by the AP at the local
network point of attachment (VLAN at AP port).
The IP address definition is only required for a routed VNS
or VLAN bridged VNS
.
Summary of Contents for HiPath C10
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