Enhanced Terminal Mobility through the use of Filters for Mobile IP

There are currently, many bearer technologies available (Wireline, WLAN, GSM, GPRS, UMTS, etc.) that modern communication devices can use to connect to the Internet. Mobile IP enables such devices to use any of these bearer technologies even while roaming between them and without breaking ongoing communications. However, Mobile IP does not provide the facilities for mobile nodes (hosts or routers) to concurrently use multiple points of attachment to the Internet, even though modern communication devices may host multiple interfaces. ‘Filters for Mobile IP’ is an extension to the original protocol that allows for the efficient use of multiple interfaces on a single device. This study makes a case for ‘Filters for Mobile IP’, describes its functionality and highlights scenarios where its presence is required.