Abstract: The present invention relates to a Domain Name System (DNS) server and a method for resolving DNS queries from a number of clients. The DNS server comprises multiple virtual DNS server instances servicing different clients. The DNS server further comprises a shared cache for caching records which indicate answers to resolved DNS queries. The shared cache is shared between a set of virtual DNS server instances. The virtual DNS server instances that share the shared cache are able to cache DNS query results in the shared cache as well as resolve a DNS query by retrieving a cached record corresponding to the DNS query from the shared cache. Thus it is possible for a virtual DNS server instance to make use of DNS query results obtained by other virtual DNS server instances.

Abstract: A method and a Mobile Access Gateway (MAG) node for use in an IP network. The MAG node comprises a server for providing configuration information. The server includes a memory for storing configuration information, and a processing unit configured to generate a request for configuration information associated with a mobile terminal that has attached to the network. The server caches the configuration information in the server memory, and includes one or more items of configuration information from the cached information in a message to be sent to the mobile terminal.

Abstract: The present invention relates to a method, device, instruction set, and signal for communicating the availability of additional information in access points relevant for determining in a mobile station which access point to connect to. An information tag is inserted into a beacon signal alerting of the additional information available; mobile stations not implemented with the present invention may operate as if the information tag was not present and thus ensuring compatibility between systems.

Abstract: A method of handling IP packets transmitted from a correspondent node to a mobile node via an intermediate node using the IPsec security protocol. The method comprises, at the correspondent node, identifying specified selector information within the part of the packet to be encrypted, and incorporating the identified information or a digest thereof into a header part of the packet which is to be sent unencrypted, transmitting the packet from the correspondent node to said intermediate node, and, at the intermediate node, receiving the transmitted packet and identifying a policy to be applied to the packet using said information or digest contained in the packet, and applying the policy to the packet.

Abstract: A method and a Mobile Access Gateway (MAG) node for use in an IP network. The MAG node comprises a server for providing configuration information. The server includes a memory for storing configuration information, and a processing unit configured to generate a request for configuration information associated with a mobile terminal that has attached to the network. The server caches the configuration information in the server memory, and includes one or more items of configuration information from the cached information in a message to be sent to the mobile terminal.

Abstract: Method for establishing a traffic route for a mobile network node attached to a mobile router, wherein the mobile router has a plurality of upstream interfaces, by sending, from the mobile router to the mobile network node, identifiers of the interfaces and their properties; the identifiers are mapped to IPv6 traffic classes or IPv4 type of service. At the mobile network node, an interface is chosen based upon the identified interface properties. The traffic class or type of service field of at least certain outgoing packets includes the identifier of the chosen interface. At the mobile router, packets are routed across the interface corresponding to the identifier contained in the traffic class or type of service fields.

Abstract: A method of establishing a traffic route for a mobile network node attached to a mobile router, where the mobile router has a plurality of upstream interfaces available to it. The method comprises sending from the mobile router to the mobile node, identifiers of the interfaces and of their properties, the identifiers mapping to IPv6 traffic classes or IPv4 type of service. In the case of IPv6, the identifiers may be contained within router advertisement messages broadcast by the mobile router. At the mobile network node, an interface is chosen based upon the identified interface properties. The traffic class or type of service field of at least certain outgoing packets includes the identifier of the chosen interface. At the mobile router, packets are routed across the interface corresponding to the identifier contained in the traffic class or type of service fields, typically using rules created upon detection of a traffic class value in a packet header.

Abstract: A method of handling IP packets transmitted from a correspondent node to a mobile node via an intermediate node using the IPsec security protocol. The method comprises, at the correspondent node, identifying specified selector information within the part of the packet to be encrypted, and incorporating the identified information or a digest thereof into a header part of the packet which is to be sent unencrypted, transmitting the packet from the correspondent node to said intermediate node, and, at the intermediate node, receiving the transmitted packet and identifying a policy to be applied to the packet using said information or digest contained in the packet, and applying the policy to the packet.

Abstract: The present invention relates to a method, device, instruction set, and signal for communicating the availability of additional information in access points relevant for determining in a mobile station which access point to connect to. An information tag is inserted into a beacon signal alerting of the additional information available; mobile stations not implemented with the present invention may operate as if the information tag was not present and thus ensuring compatibility between systems.

Abstract: System and method are disclosed for bridging a point-to-point network such as a Bluetooth scatternet with a shared medium network such as an Ethernet LAN. The scatternet is connected to the LAN via a network access point (NAP). Data packets sent from the LAN to the scatternet are filtered at the NAP to eliminate unnecessary data packets from being sent to the scatternet. Only certain ones of the data packets are forwarded between the LAN and the scatternet. An inter-NAP protocol is used to exchange messages where two or more NAPs are connected to the LAN. Broadcast loops are prevented from occurring in the scatternet and the LAN by defining Administrative domains and NAP service areas (NAPSAs), and controlling the borders thereof according to a broadcast type of the data packets.

Abstract: System and method are disclosed for bridging a point-to-point network such as a Bluetooth scatternet with a shared medium network such as an Ethernet LAN. The scatternet is connected to the LAN via a network access point (NAP). Data packets sent from the LAN to the scatternet are filtered at the NAP to eliminate unnecessary data packets from being sent to the scatternet. Only certain ones of the data packets are forwarded between the LAN and the scatternet. An inter-NAP protocol is used to exchange messages where two or more NAPs are connected to the LAN. Broadcast loops are prevented from occurring in the scatternet and the LAN by defining Administrative domains and NAP service areas (NAPSAs), and controlling the borders thereof according to a broadcast type of the data packets.

Abstract: System and method are disclosed for bridging a point-to-point network such as a Bluetooth scatternet with a shared medium network such as an Ethernet LAN. The scatternet is connected to the LAN via a network access point (NAP). Data packets sent from the LAN to the scatternet are filtered at the NAP to eliminate unnecessary data packets from being sent to the scatternet. Only certain ones of the data packets are forwarded between the LAN and the scatternet. An inter-NAP protocol is used to exchange messages where two or more NAPs are connected to the LAN. Broadcast loops are prevented from occurring in the scatternet and the LAN by defining Administrative domains and NAP service areas (NAPSAs), and controlling the borders thereof according to a broadcast type of the data packets.

Abstract: System and method are disclosed for bridging a point-to-point network such as a Bluetooth scatternet with a shared medium network such as an Ethernet LAN. The scatternet is connected to the LAN via a network access point (NAP). Data packets sent from the LAN to the scatternet are filtered at the NAP to eliminate unnecessary data packets from being sent to the scatternet. Only certain ones of the data packets are forwarded between the LAN and the scatternet. An inter-NAP protocol is used to exchange messages where two or more NAPs are connected to the LAN. Broadcast loops are prevented from occurring in the scatternet and the LAN by defining Administrative domains and NAP service areas (NAPSAs), and controlling the borders thereof according to a broadcast type of the data packets.

Abstract: System and method are disclosed for bridging a point-to-point network such as a Bluetooth scatternet with a shared medium network such as an Ethernet LAN. The scatternet is connected to the LAN via a network access point (NAP). Data packets sent from the LAN to the scatternet are filtered at the NAP to eliminate unnecessary data packets from being sent to the scatternet. Only certain ones of the data packets are forwarded between the LAN and the scatternet. An inter-NAP protocol is used to exchange messages where two or more NAPs are connected to the LAN. Broadcast loops are prevented from occurring in the scatternet and the LAN by defining Administrative domains and NAP service areas (NAPSAs), and controlling the borders thereof according to a broadcast type of the data packets.

Abstract: System and method are disclosed for bridging a point-to-point network such as a Bluetooth scatternet with a shared medium network such as an Ethernet LAN. The scatternet is connected to the LAN via a network access point (NAP). Data packets sent from the LAN to the scatternet are filtered at the NAP to eliminate unnecessary data packets from being sent to the scatternet. Only certain ones of the data packets are forwarded between the LAN and the scatternet. An inter-NAP protocol is used to exchange messages where two or more NAPs are connected to the LAN. Broadcast loops are prevented from occurring in the scatternet and the LAN by defining Administrative domains and NAP service areas (NAPSAs), and controlling the borders thereof according to a broadcast type of the data packets.