Network connection system, network connection method, and switch used therefor

摘要

A wireless LAN access point receives a destination URL from a mobile terminal and provides the destination URL to an authentication switch. The authentication switch is connected to an authentication gateway associated with the destination URL and provides the destination URL to the authentication gateway. The authentication gateway connected to the authentication switch causes an authentication server associated with the destination URL to perform authentication of the mobile terminal ( 1 ). After the authentication server authenticates the mobile terminal ( 1 ), the authentication server provides an IP address to the mobile terminal ( 1 ). The mobile terminal is thus connected to the content server specified by the URL.