Abstract
Currently, computer networks are essential in supporting communication in the company. There are many advantages of using computer networks, for example, communication between clients becomes easier and faster, remote servers through computer networks and client-server applications within the company. Computer network security is very important for the efficiency and effectiveness of computer network performance. Reliable infrastructure in a computer network is very influential for its performance. PT. Megacom company in the field of computer spare part distributor. The problem faced is the absence of good and secure communication technology between the head office, branch offices, and distributors. The purpose of this study is to design a Wide Area Network network between the head office and branch offices of PT. Megacom. This study uses qualitative methods with observation and interview data collection techniques. The results of the study show that in the traceroute experiment during the network test from the head office to the branch, the packet path goes well through the tunnel with fast and secure data access through a VPN network with the designed L2TP/IPSec method.
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