VPN and its types:
In the recent years, keeping in mind the security concerns in the world the researchers and network professionals were made to device a new way that is more secure and safe. And as a result of this VPN was introduced. VPN is been found in many flavors like L2TP, openVPN, L2TP over IPSec, PPTP and Cisco IPSec to name a few. This article here would briefly overview the specifications, advantages, disadvantages and service providers of IPSec VPN.
IPSec VPN Introduction:
IPSec or Internet Protocol Security is a type of VPN protocol that is used to secure every packet of the IP layer by authenticating and encrypting it. IPSec also synchronizes the end users i.e. the server and the PC among which the VPN is being established for establishing mutual authentication at the start of the session and sharing of cryptographic keys to be shared during the session. IPSec is an end-to-end security scheme operating in the Internet Layer of the Internet Protocol Suite. It can be used in protecting data flows between a pair of hosts (host-to-host), between a pair of security gateways (network-to-network), or between a security gateway and a host (network-to-host).
Advantages and Disadvantages of IPSec:
Now let’s discuss a few advantages and disadvantages of the IPSec protocol.
The main and the most important benefit of IPSec is that it is a universal protocol. IPSec is an international standard because of the flexibility and power of IP. It can provide security and communicate with a variety of different networks from around the world. Through IP, IPSec can be applied in networks of all sizes including LAN’s to global networks.
When transmitting small packets, the encryption process of IPSec generates a large overhead. This diminishes the performance of the network. Because IPSec has a great number of features and options, it is very complex. Complexity increases the probability of the presence of a weakness or hole. For example, IPSec is weak against replay attacks.
VPN Service Providers providing IPSec:
There are many VPN Service providers that provide IPSec protocol in their VPN services but the best VPN service provided in this scenario is by the following Top 2 VPN service providers.
|Rank||Provider||Starting Price||Visit Provider Site|
|1||ExpressVPN||$8.32 /Month||Visit Provider Site|
|2||TotalVPN||$7.49 /Month||Visit Provider Site|
|3||IPvanish||$10.00/Month||Visit Provider Site|
|4||StrongVPN||$21/ 3 Months||Visit Provider Site|
|5||VyprVPN||$14.95/Month||Visit Provider Site|