Reverse Tunneling and Private Addresses

Mobile Internet Protocol (IP) enables the transfer of information to and from mobile computers, such as laptop and wireless communications. The mobile computer can change its location to a foreign network and still access and communicate with and through the mobile computer's home network. The Solaris implementation of Mobile IP supports only IPv4.

In the Solaris 8 4/01 release, Mobile IP enables you to set up reverse tunnels. By setting up a reverse tunnel from the mobile node's care-of address to the home agent, you ensure a topologically correct source address for the IP data packet. By using reverse tunnels, you can also assign private addresses to mobile nodes.

For an introduction to Mobile IP with reverse tunneling and the use of private addresses, see “Overview of Mobile IP” in the Mobile IP Administration Guide. Chapter 2 addresses the Solaris Mobile IP implementation of these new features.