QoS Analysis of Site-to-Site VPN and Its Integration Potential for Securing Communication on Electric Vehicles

Today, one of the challenges and hot issues related to Electric Vehicles (EV) is communication security, especially in the exchange of sensitive information on EVs. Virtual Private Network (VPN) is present as an alternative for those who need a communication network with reliable connectivity and security. VPNs have different types of protocols, some of which are Point-to-Point Tunneling Protocol (PPTP) and Ethernet over IP (EoIP) combined with IPSec (EoIP/IPSec). The purpose of this study aimed to analyze and compare the Quality of Service (QoS) generated by PPTP and EoIP/IPSec, then see the potential for integration of the combination between EoIP and IPSec as an effort of securing communications on EVs. QoS measurements were carried out using the TIPHON standard whose parameters consist of delay, jitter, packet loss, and throughput, as well as additional parameters such as CPU consumption and network security review. Throughput testing on the VPN client side was also carried out. The results of this study indicate that the combination of EoIP and IPSec, both in terms of performance and security, is possible and has the potential to be integrated into EVs.