Secure wireless mobile communications
First Claim
1. A security gateway for a wireless communications network that comprises a home network and a plurality of foreign networks, the home and foreign networks being interconnected by a backbone network, the security gateway comprising:
- at least two network interfaces wherein the first interface is intended to be connected to the backbone network and the second interface is intended to be connected to the home network and wherein the security gateway provides the only point of access to the home network;
a routing module for forwarding data packets between the first and the second interfaces; and
a security processing module wherein the security processing module maintains a single tunnel mode security association with a mobile host intended to be associated with the home network and wherein the intended single tunnel mode security association with the mobile host provides the mobile host with secure communications over any wireless interface through which the mobile host communicates in the wireless network.
5 Assignments
0 Petitions
Accused Products
Abstract
Secure wireless communications for a mobile host over any wireless interface within a wireless network is provided by a security gateway. The security gateway is situated and configured within the mobile host'"'"'s home network of the wireless network such that it provides the only point of access between the wireless network and the home network. Additionally, the security gateway is separate and distinct from the mobile host'"'"'s home agent within the home network. A single tunnel mode security association is established between the mobile host'"'"'s wireless interface and the security gateway'"'"'s network interface on the home network. This single tunnel mode security association remains established as the mobile host moves between foreign networks and provides secure wireless communications to the mobile host whether the mobile host is in the home network or the foreign networks.
-
Citations
6 Claims
-
1. A security gateway for a wireless communications network that comprises a home network and a plurality of foreign networks, the home and foreign networks being interconnected by a backbone network, the security gateway comprising:
-
at least two network interfaces wherein the first interface is intended to be connected to the backbone network and the second interface is intended to be connected to the home network and wherein the security gateway provides the only point of access to the home network;
a routing module for forwarding data packets between the first and the second interfaces; and
a security processing module wherein the security processing module maintains a single tunnel mode security association with a mobile host intended to be associated with the home network and wherein the intended single tunnel mode security association with the mobile host provides the mobile host with secure communications over any wireless interface through which the mobile host communicates in the wireless network. - View Dependent Claims (2, 3)
-
-
4. A wireless communications network comprising:
-
a home network with one or more wireless interfaces for providing access to a mobile host associated with the home network;
a plurality of foreign networks each comprising one or more wireless interfaces for providing access to the mobile host when the mobile host moves to the foreign networks; and
a backbone network interconnecting the home network and plurality of foreign networks;
said home network including a security gateway that interfaces the home network to the backbone network, wherein the security gateway comprises a security processing module that maintains a single tunnel mode security association with the mobile host and wherein the single tunnel mode security association provides the mobile host with secure communications over the home network wireless interfaces and the wireless interfaces of the plurality of foreign networks. - View Dependent Claims (5, 6)
-
Specification