664| IP Mobility AOS-W 6.5.3.x| User Guide
2. The traffic is intercepted by the home agent in the client’s home network and tunneled to the care-of
address in the foreign network.
3. The foreign agent delivers traffic to the mobile client.
4. Traffic sent by Mobile Client B is also tunneled back to the home agent.
Figure 87 Routing of Traffic to Mobile Client within Mobility Domain
Configuring Mobility Domains
Before configuring a mobility domain, you should determine the user VLAN(s) for which mobility is required.
For example, you may want to allow employees to be able to roam from one subnetwork to another. All
switches that support the VLANs into which employee users can be placed should be part of the same mobility
domain.
Alcatel-Lucent mobility domains are supported only on Alcatel-Lucent switches.
A switch can be part of multiple mobility domains, although it is recommended that a switch belong to only one
domain. The switches in a mobility domain do not need to be managed by the same master switch.
You configure a mobility domain on a master switch; the mobility domain information is pushed to all local
switches that are managed by the same master switch. On each switch, you must specify the active domain
(the domain to which the switch belongs). If you do not specify the active domain, the switch will be assigned
to a predefined “default” domain.
Although you configure a mobility domain on a master switch, the master switch does not need to be a
member of the mobility domain. For example, you could set up a mobility domain that contains only local
switches; you still need to configure the mobility domain on the master switch that manages the local switches.
You can also configure a mobility domain that contains multiple master switches; you need to configure the
mobility domain on each master switch.
The basic tasks you need to perform to configure a mobility domain are listed below. The sections following
describe each task in further detail. A sample mobility domain configuration is provided in Sample
Configuration on page 666.
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