Ipsec and vpn

1. IP_SEC
AND
VPN
Presented By: M .Usama(203135)
Mueez(203061)

2. IPSEC
• IPsec (Internet Protocol Security) is a large set of protocols and algorithms. IPsec is
majorly used for securing data transmitted all over the internet. The Internet
Engineering Task Force, or IETF, which was developed the IPsec protocols for the
purpose of providing security at the IP layer through authentication and encryption
of IP network packets.

3. USES
• protecting sensitive data.
• secure transfer of information.
• To encrypt application layer data.
• To provide security for routers sending routing data across the public internet.
• To provide authentication without encryption.
• secure virtual private networks (VPNs).

4. COMPONENTS
Encapsulating Security Payload (ESP)
Authentication Header (AH)
Internet Key Exchange (IKE)

5. ADVANTAGES OF IPSEC
• IPsec provides network-layer security.
• provides confidentiality.
• zero dependability on applications.

6. DISADVANTAGES OF IPSEC
• IPsec leads to high CPU usage.
• Incompatibility issues with software.
• Access range problem.

7. VPN
Virtual Private Network is a type of private network that uses public
telecommunication, such as the Internet, instead of leased lines to communicate.

8. TYPES OF VPN
• Remote-access VPN
• Site-to-site VPN(intranet)
• Site-to-site VPN(extranet)

9. FUNCTIONS OF VPN
• Authentication
• Access control
• Confidentiality
• Data integrity

10. ADVANTAGES OF VPN
• Cost savings
• Scalability
• Security

11. DISADVANTAGES OF VPN
• Understanding public network security
• Availability
• Performance