Disadvantages of Using VPN

VPN also has the disadvantage that first, VPNs need serious attention to the security of public networks (internet). Therefore, appropriate actions are needed to prevent the occurrence of undesirable things such as wiretapping, hacking and cybercrime actions on VPN networks. Therefore, you need to find out who is the best vpn provider.

Second, the availability and performance of company-specific networks through internet media is highly dependent on factors that are beyond the control of the company. The speed and reliability of data transmission via the internet that is used as a VPN network communication media cannot be regulated by the users of the VPN network, because the traffic that occurs on the internet involves all parties of internet users throughout the world.

Third, VPN network technology builders from several different vendors may not be used together because the existing standards for VPN technology are inadequate. Therefore, flexibility in choosing a device that suits your needs and company finances is lacking.

Fourth, VPNs must be able to accommodate protocols other than IP and existing internal network technology. But IP can still be used VPN through the development of IPSec (IP Security Protocol).

In general, VPN implementation consists of 2 types: VPN remote access and a site-to-site VPN. Remote access, also called virtual private dial-up network (VPDN), connects users who are mobile with a local area network (LAN).

This type of VPN is used by company employees who want to connect to the company’s special network from various remote locations of their company. Usually, companies that want to create this type of VPN network will work with an enterprise service provider (ESP). ESP will provide a network access server (NAS) for the company. ESP will also provide client software for computers used by company employees.

To access the company’s local network, the employee must be connected to the NAS by dialing a specified telephone number. Then by using client software, the employee can connect to the company’s local network.

Companies that have a large number of employees in the field can use VPN remote access to build a WAN. This type of VPN will provide security, by encrypting the connection between the company’s local network and its employees in the field. The third-party that performs this encryption is the ISP.