Motorola WS5100 manual Configuring GRE Tunnels, Select the MU Status tab

Switch Services 5-41

2. Select the MU Status tab.

3. Refer to the following information within the MU Status tab:

MU MAC	Displays the factory hardcoded MAC address of the MU. This value is set at the factory and
	cannot be modified. Thus, it should be consistent as the MU roams within the mobility
	domain.
MU IP Addr	Displays the IP address the MU is using within the mobility domain. Again, this may not be
	the IP address used by the MU for initial association with the switch, but it is the IP address
	set for the MU to roam amongst subnets. For more information, see Configuring Layer 3
	Mobility on page 5-35.
Home Sw IP	Displays the MU’s home switch IP address. This is the IP address of the switch the MU is
	initially associated with, before roaming across subnets as part of its layer 3 mobility activity.
Home Sw VLAN	Displays the MU’s home switch VLAN identifier. This is the VLAN index value set for the MU
	when it was originally configured as part of a VLAN with its home switch.
Curr Sw IP	Displays the IP address of the switch the MU is currently associated to within the mobility
	domain.
Roam	Displays the number of times the MU has roamed to a different layer 3 subnet.

5.6 Configuring GRE Tunnels

Tunneling involves encapsulating a packet that supports one protocol within another packet, which may run on the same protocol or on a different protocol. It is generally used to support evolving networks, its capacity and security requirements. Generic Routing Encapsulation (GRE) is one of the many commonly used protocols for IP over IP tunneling.

IP Tunneling allows network designers to implement policies like:

• Assigning routes to different types of traffic