IPSec

A technician is establishing connectivity through a VPN for remote server access.

Which of the following protocols should be utilized to configure this VPN connection securely?

A.

IPSec

B.

IGRP

C.

L2TP

D.

PPTP.

A.

When establishing a Virtual Private Network ( VPN), it is essential to use secure protocols that ensure confidentiality, integrity, and authenticity of data transmitted over the VPN. Among the options provided, only one protocol, IPSec (Internet Protocol Security), meets these requirements. Therefore, the correct answer is A: IPSec.

IPSec is a suite of protocols that provides end-to-end security for IP traffic. It is commonly used to secure VPN connections over the Internet, ensuring that sensitive data remains private and protected from unauthorized access.

IGRP (Interior Gateway Routing Protocol) is a routing protocol used to exchange routing information between routers within a single autonomous system. It does not provide security features and is not related to VPN configuration.

L2TP (Layer 2 Tunneling Protocol) is a tunneling protocol used to support virtual private networks ( VPNs). It provides data confidentiality, integrity, and authentication but relies on other protocols, such as IPSec, to provide these features. Therefore, L2TP is not a complete solution for VPN configuration.

PPTP (Point-to-Point Tunneling Protocol) is a protocol used to support VPNs. It provides data encryption and authentication but has known security vulnerabilities that make it less secure than IPSec or L2TP. Therefore, it is not recommended for VPN configuration.

In summary, IPSec is the most suitable protocol for configuring a VPN connection securely, providing end-to-end security for IP traffic, and ensuring confidentiality, integrity, and authenticity of data transmitted over the VPN.