Traditionally Roaming IP addresses use Layer 2 to associate and re-associate a mobile device across a network as they move from AP to AP, it shouldn't matter how the device is associated with the network to begin with, and it is made possible by the devices unique MAC address.CommonStray wrote:A roaming IP address; do you get that from tethering your smart phone while its in roaming mode? Or are you referring to a dynamic ip?
A Layer 3 mechanism, which varies from vendor to vendor, is used to keep connection association with running programs or applications while a user changes APs across subnets. The Mobile IP protocol is an example of a Layer 3 mechanism.
Unless I am mistaken of course...