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Seamless Remote Access to a Home Network - Design and Implementation of TLS VPN solution for Linux
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Helsinki University of Technology |
Master's thesis
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T-110
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en
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(9) + 63
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Abstract
The number of households with local area network, increased drastically in recent years.
A typical home network includes multimedia server, which is used to share photos, music and video content over a local network.
Thus, the access to such server from a remote location is an important issue.
The new emerging technologies, such as home automation, are aimed to increase comfort and security of home residents.
The ability to control home devices and be always aware of a situation at home is a vital part of any home automation system.
The security of such remote access is another important issue.
Until recently, remote access has been widely used for corporate networks in form of VPNs.
In this thesis, we analyzed several existing solutions to the issue: PPTP, IPSec and OpenVPN, among others.
We made a conclusion that they do not suit specific needs of remote access to a home network.
Some of them do not support multicast messages that are widely used by UPnP media servers and home automation systems; others are complicated to set up and require advanced networking knowledge from home users.
The solution we discuss in this thesis, proposes a secure way to access network nodes in a home network from a remote location, with support of unicast, broadcast and multicast traffic.
The solution does not introduce a new protocol, but instead reuse IETF approved protocols and standards.
The implementation of the proposed solution is presented, its feasibility is analyzed and compared with existing VPN solutions.