WESM xl Management and Configuration Guide WS.02.XX and greater

9-14
Fast Layer 2 Roaming and Layer 3 Mobility
Configuring Layer 3 Mobility
Configuring Layer 3 Mobility
You must complete these tasks to configure Layer 3 mobility:
1. Configure Layer 3 mobility settings for the local Wireless Edge Services
xl Module:
• IP address
• WLANs on which Layer 3 mobility is enabled
2. Specify the peers’ IP addresses.
3. Enable Layer 3 mobility.
4. Save the configuration and complete these steps on all other Wireless
Edge Services xl Modules in the Layer 3 mobility domain.
It is assumed that you have completed the configurations outlined in Table 9-2.
Note You cannot use user-based, or dynamic, VLANs in a WLAN assigned to the
Layer 3 mobility domain. In other words, the Dynamic Assignment box in the
WLAN’s Edit screen must be unchecked.
Table 9-2. Other Configurations Necessary for Layer 3 Roaming
Configuration Necessary Settings
WLAN configuration (for each WLAN
on which Layer 3 mobility is enabled)
• SSID and security settings are the same as peers’
settings.
• VLAN ID is different from at least some peers’
VLAN settings. (Different subnetworks
must have
different VLAN IDs.)
• Dynamic VLAN assignment is disabled.
IP configuration on the local module • The module can reach peers.
• The peers can reach the module.
IP configuration for stations • DHCP is provided through either:
– local DHCP pool for the VLAN mapped to the
WLAN
– external DHCP server
• Static IP addresses, if used, are manually
configured (not typical).