Abstract: According to one aspect, the subject matter described herein includes a method for communicating an encrypted data packet. The method includes steps occurring at a first gateway node. The method also includes receiving a data packet from a first host. The method further includes determining that a first security association (SA) instance associated with the data packet is in an inactive state. The method further includes identifying a second SA instance that is both associated with the data packet and in an active state. The method further includes forwarding the data packet to the second SA instance.

Abstract: A system and a method enabling a mobile user-terminal to participate as a peer in a peer-to-peer network, the system including a mobile user-terminal and a network device, the network device including a peer-communication module operative to communicate as a peer in a peer-to-peer network, a terminal-communication module operative to communicate with a user-terminal device, and a proxy module operative to perform peer operations in the peer-to-peer network on behalf of the user-terminal device.