A network address translation traversal system and method for real-time communications are provided. The network address translation traversal system includes a user terminal equipment, a network address translation device, a signaling control system and a peer terminal. The user terminal equipment is in a private network, while the signaling control system and the peer terminal are in a public network. The signaling control system is configured to instruct the network address translation device to create a network address translation mapping for a real-time communication connection. The peer terminal is configured to create the real-time communication connection with the user terminal equipment via the network address translation device directly according to the network address translation mapping.

An information processing apparatus for processing profile identification information of content is provided. The information processing apparatus includes a storage unit configured to store profile identification information in which information indicating a plurality of profile elements regarding content is connected and a transmission unit configured to send the profile identification information to another device. The profile identification information includes a profile element regarding a container format of content, a profile element regarding a protection format applied to content, and a profile element regarding an encoding format of content, and at least one thereof contains a nested profile element describing classification of a profile element or other supplemental information.

An information processing apparatus for processing profile identification information of content is provided. The information processing apparatus includes a storage unit configured to store profile identification information in which information indicating a plurality of profile elements regarding content is connected and a transmission unit configured to send the profile identification information to another device. The profile identification information includes a profile element regarding a container format of content, a profile element regarding a protection format applied to content, and a profile element regarding an encoding format of content, and at least one thereof contains a nested profile element describing classification of a profile element or other supplemental information.

A method for creating a secure link between any two endpoints in a network comprises: assigning a unique identifier to each endpoint of a network; for each endpoint in the network, transmitting the unique identifiers associated with each of the remaining endpoints in the network to said endpoint; establishing a secure link between a source endpoint and a destination comprising: transmitting a data-session establishment packet from the source endpoint to the destination endpoint via a symmetric NAT device; wherein the data-session establishment packet comprises the unique identifier associated with the source endpoint; performing a matching operation at the destination endpoint to match the unique identifier associated with the source endpoint with a unique identifier known to the destination endpoint; and upon matching of unique identifiers then creating a forwarding table entry for the destination endpoint based on the source address and source port associated with the source endpoint.

An information processing apparatus for processing profile identification information of content is provided. The information processing apparatus includes a storage unit configured to store profile identification information in which information indicating a plurality of profile elements regarding content is connected and a transmission unit configured to send the profile identification information to another device. The profile identification information includes a profile element regarding a container format of content, a profile element regarding a protection format applied to content, and a profile element regarding an encoding format of content, and at least one thereof contains a nested profile element describing classification of a profile element or other supplemental information.

A method of optimizing traffic on a mobile device includes determining that an application is inactive based on historical behavior of the application and blocking traffic originating from or directed towards the application that is determined to be inactive based on historical behavior. A related mobile device is also provided.

A mobile-side IP address is translated into an intranet-side MAC address, and an IP address for an intranet is acquired. The present invention provides a network system for transferring a packet, including: a first network that controls transfer of data at a first layer; a second network that is connected to the first network and controls transfer of data at a second layer different from the first layer; and a translation device that translates an address between networks, in which the translation device translates the address of the first layer of the first network attached to data transferred from the first network to the second network into the address of the second layer of the second network.

A method enables communication between Session Management Function (SMF) and User Plane Function (UPF) instances which are separately deployed behind Network Address Translation (NAT) services. The method includes configuring an SMF or a UPF to initiate an association with a corresponding UPF or SMF. The SMF registers first information with a Network Repository Function (NRF) enabling the remote UPF to communicate with the SMF through a NAT service. The method further includes obtaining second information from the NRF enabling the SMF to communicate with the remote UPF through the NAT service. The method also includes sending an association request to the remote UPF based on the second information and receiving an association response from the remote UPF through the NAT service.

An active-active cluster control method includes that a control node receives a first query request from a first network processing node in an active-active cluster, configures an outbound forwarding rule based on forwarding information, generates an inbound forwarding rule, and sends the outbound forwarding rule to the first network processing node. The control node may further receive a second query request, determine that forwarding information of a second packet matches the inbound forwarding rule, obtain the recorded inbound forwarding rule, and send the inbound forwarding rule to the second network processing node.

Various implementations described herein are directed to technologies for providing over the top streaming for one or more clients of a network. A network is formed among the network among customer premises equipment. The customer premises equipment may include at least a gateway and the one or more clients. A user selection for over the top (OTT) content is received. The OTT content is received and includes one or more cue points. The gateway is marked as a proxy server in response to receiving the one or more cue points. Proxy data is received from the gateway corresponding to the one or more cue points.