NAT traversing VPN client software

• Main Authors: Go, Jay Norris D., Lim, Mark Christopher O., Sta. Ana, Don Isaac O., Tuason, Matthew Andre S.
• Format: text
• Language: English
• Published: Animo Repository 2009
• Subjects: Directory services (Computer network technology); Internet addresses; Computer networks > Security measures; Extranets (Computer networks)
• Online Access: https://animorepository.dlsu.edu.ph/etd_bachelors/14626
• Institution: De La Salle University

Virtual Private Network (VPN) is a technology that brings Local Area Networks (LANs) and individual users together through the use of the Internet. Typical VPN client software like Hamachi and Leaf Networks connect hosts in a peer to peer manner, but have problems when used behind Network Address Translation (NAT) enabled devices such as broadband routers. They try to solve these issues by implementing traversal algorithms. However, not all NAT traversal issues have been solved. Because of this, peers are forced to undergo a relay type of connection going from one peer to the server and from the server to the other peer. This study proposes the NAT Traversing VPN Client Software as an alternative that implements the PS-STUN traversal algorithm to avoid the issue of relayed connections. The server found in the public network does not act as a relay point between peers and clients behind NAT devices can successfully establish peer to peer tunnel connections.