Methods, apparatus, and system for controlling access to a local network

A method for controlling access to a first network, comprising:

• receiving, by a first network access device of the first network, an access request from a first user device,
• determining, by the first network access device, if the first user device was granted an access to the first network,
• if the first user device has not been granted an access to the first network, determining, if a second network access device linked to the first network access device granted the first user device an access to a second network, and
• if the second network access device granted access to the first user device, granting the first user device an access to the first network by the first network access device,
• wherein the second network access device is linked to the first network access device if a link condition is met, the link condition being:
• c) a different user device has been granted an access to the first and second networks by said first and second network access devices respectively, or
• d) at least one communication has been exchanged between the first and second network access devices.