Wireless/Redundant Edge Services xl Module Management and Configuration Guide WS.02.xx and greater

9-15
Fast Layer 2 Roaming and Layer 3 Mobility
Configuring Layer 3 Mobility
Configuring Layer 3 Mobility Settings
The first step in establishing a Layer 3 mobility domain is configuring local
Layer 3 mobility settings on your Wireless Edge Services xl Module. You must
specify:
■ the IP address that the module uses in the mobility domain:
• an IP address configured on the local Wireless Edge Services xl
Module
• an IP address reachable by all peers
In other words, the VLAN with this IP address must be tagged on the
module’s uplink port. Network infrastructure devices must also be
able to route to this address.
■ the local WLANs that can use Layer 3 roaming
Stations do not roam between these WLANs. Stations only roam between
RPs that support the same WLAN. Wireless Edge Services xl Modules
create a separate Layer 3 mobility domain for each WLAN.
To configure the Layer 3 mobility settings, complete these steps:
1. Select Network Setup > Layer 3 Mobility > Configuration.
2. Specify a valid IP address on this Wireless Edge Services xl Module. You
have two options:
• Select Use Default Management Interface to use the address on the
management VLAN.
• Select Use this Local Address and manually enter an IP address.
3. The section at the bottom on the screen displays all WLANs on this
module. Check the boxes for the WLANs on which you want to enable
Layer 3 mobility.
You can use the All WLANs On and All WLANs Off buttons to quickly select
and deselect WLANs.
You might see the screen shown in Figure 9-5 when you attempt to check
a WLAN’s box.
Figure 9-5. Dynamic VLAN Error