A remote access system comprises a remote terminal, an access server accommodating a connection from the remote terminal, and first and second logical channels logically connecting the remote terminal and the access server. The remote terminal comprises a flow search processing unit that classifies flows. The access server comprises a pass determining unit that determines whether a flow can pass or not, and a flow search processing unit that classifies flows. The first logical channel is used to transfer packets included in a flow that needs to be judged by the access server as to whether it can pass or not. The second logical channel is used to transfer packets included in a flow that has been permitted by the access server to pass.