Question

A mobile user is roaming and associated with a foreign network which assigned it a NAT IP address. To communicate with that roaming mobile user, a correspondent device uses _____________ as datagram destination address using indirect routing.

Answer 1

When communicating with a roaming mobile user on a foreign network using a NAT IP address, the correspondent device uses the Care-of Address as the destination for datagrams with indirect routing.

Step-by-step explanation:

To communicate with a mobile user who is roaming and using a Network Address Translation (NAT) IP address associated with a foreign network, a correspondent device sends datagrams to the Care-of Address (CoA) as the destination address when employing indirect routing. Indirect routing involves the use of an intermediary, such as a home agent, to facilitate communication between the roaming mobile user and the correspondent device. This approach ensures that the correspondence can successfully reach the mobile user despite the user having obtained a local IP address from the foreign network.