Patent ID: 8830893

Claim:
A method of managing a network layer packet in an access node, said access node arranged to communicate with a first transmission network, a second transmission network, and a user node, said user node having direct wireless access to said access point and having indirect access through said access point to said first transmission network and said second transmission network, said method including the following processes performed by the access node: inspecting at least one part of the network layer packet; and transmitting the inspected network layer packet to one of the following nodes responsive to a result of the inspection of the network layer packet: (1) a first node of the first transmission network by switching the inspected network layer packet directly to the first transmission network; (2) a second node of the second transmission network by switching the inspected network layer packet directly to the second transmission network; and (3) said user node via a radio channel; said method also comprising the following processes performed by the access node between performing said inspecting at least one part of said network layer packet and said switching whenever the network layer packet is relative to a service dispensed by an equipment node of said second transmission network: initiating a negotiation with a node of said first transmission network; establishing a data radio channel responsive to a result of said negotiation; and transmitting said network layer packet relative to the dispensed service from said access node to said user node through the established data radio channel.