Method of establishing a tunnel between network terminal...

Details Method of establishing a tunnel between network terminal... Method of establishing a tunnel between network terminal...

2007-12-04

2011-12-20

Neurauter, George (Department: 2447)

Electrical computers and digital processing systems: multicomput

Remote data accessing

Using interconnected networks

C709S223000

Reexamination Certificate

active

08082324

ABSTRACT:
A method of establishing a tunnel between network terminal devices passing through firewall is applied to a network system which comprises at least two private networks and Internet wherein each of said private networks comprises at least a NAT router and at least a network terminal device (such as a computer, web camera, IP phone, network disk or network printer with network interface etc.), and each of said network terminal devices connects to the Internet through corresponding NAT router respectively. The method enables each of said network terminal devices of said private networks to detect the firewall policy of corresponding NAT router so as to pass through the firewall installed in corresponding NAT router according to its setting and establish a tunnel between said network terminal devices over the Internet for communication and data access by using p2p, a local relay or a remote relay.

REFERENCES:
patent: 2006/0215684 (2006-09-01), Capone
patent: 2007/0157303 (2007-07-01), Pankratov
patent: 2009/0006648 (2009-01-01), Gopalakrishnan et al.

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