Network Mobility (NEMO)

Such an extension is called NEMO and allows for network mobility – not only for one device, but entire networks/subnets. Such cases involve transferring communication while they are still in contact with each other as well as moving them together with an intact connection. Some key points about NEMO include: Network Mobility, commonly referred to as Mobile Network Mobility, pertains to a concept and protocol extension in networking that targets network mobility, contrary to individual mobile device mobility. The NEMO enables a set of mobile nodes in a network to move as one, preserving their connection with the Internet or other nets. Such is especially useful for the mobility of networks like vehicular networks, disaster recovery teams, and moving offices.

Key Factors

• Mobile Network: The whole network such as several units, routers, or subnetworks is treated as a mobile object in NEMO. It is given a unique prefix known as Mobile Network Prefix (MNP).

• Mobile Router: Usually, a mobile network consists of a mobile router that is responsible for handling the overall mobility of the network. When devices linked by a mobile router are out and about, the mobile router itself stays connected to keep the rest of the network connected to the global internet.

• Binding Updates: When the mobile network anchors to a new network (e.g., switching from Wi-Fi to Wi-Fi), the mobile router sends a binding update to its home agent on the global Internet so that it may be informed about the updated location.

• Communication for All Devices: NEMO guarantees seamless communication between all devices inside the mobile network and the Global Internet or any other device irrespective of where the networks are located.

• Home Agent: Similarly, a Home Agent plays the same role here in NEMO as it does in Mobile for an individual device. The HA is a router in the home network that ensures network reachability from the worldwide Internet. It holds the binding of the home network’s prefix with its current state.

• Routing Protocols: To allow for packet forwarding in the mobile network at the right location, different routing protocols and mechanisms are used within NEMO.

• Operation: When a Mobile Device roams to a Foreign Network, it sends its new position at this point of time called Care-of Address to its Home agent and then this data is forwarded to the home network. The mobile IP makes use of encapsulation and tunneling techniques, which ensure that data arrives safely at mobile devices as they move from place to place.

Mobile Internet Protocol and Network Mobility are both network concepts that are related to each other which enables the devices and networks in the Internet Protocol environments. Both these protocols are used for mobile devices and network connection even when the network is in a different location and even if they move in a different network. The network is maintained with the help of these protocols.