Monday, August 19, 2013

Application for Employment / Job -- By Job Searching Expert

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Which is the best data tunneling protocol for a Windows 7 VPN?

There are 4 different types of data tunneling protocols available. These are:

PPTP or Point-to-Point Tunneling Protocol
L2TP IPSec or Layer 2 Tunneling Protocol with Internet Protocol Security
SSTP or Secure Socket Tunneling Protocol
IKEv2 or Internet Key Exchange Version 2

Windows 7 supports compatibility with all of the aforementioned 4 data tunneling protocols but the best protocol is the one that offers the safest data tunnel with seamless VPN connectivity.

So let’s go on evaluating each protocol and rank them according to the last-place-first rule.

Position # 4: PPTP – The first to lose the battle is the PPTP. Being the oldest tunneling protocol out of the bunch, PPTP is widely known to have considerable security loopholes that can be exploited by skilled and experienced hackers. Although PPTP is still extensively used, it is the least secure protocol of the bunch here and that is why it deserves the last spot on this list.

Position # 3: L2TP IPSEC – The next to go is the Layer 2 Tunneling Protocol. The L2TP is a successor to the PPTP with the added support of Internet Protocol Security (IPSec) by Cisco Systems. Moreover, the L2TP protocol utilizes the L2F or Layer 2 Forwarding capability developed by Cisco Systems. While all this technology ensures a secure method of data tunneling, it does pose problems while passing through firewalls, NAT devices, and proxy servers. Moreover, L2TP requires a pre-shared key for authentication and this key cannot be absolutely secure.

Position # 2: SSTP – The successor to the L2TP is the Secure Socket Tunneling Protocol. The SSTP addresses the problems of the L2TP by utilizing the Hyper Text Transfer Protocol over a Secure Socket Layer. The use of HTTP on top of SSL results in a hybrid protocol that is commonly known as HTTPS. HTTPS technology integrates easily with firewall to ensure seamless operation of SSTP.

Position # 1: IKEv2 – This is the latest data tunneling protocol compatible with Windows 7. The Internet Key Exchange Version 2 employs a wide variety of protocols to tunnel user data like:

Internet Protocol Security Tunnel Mode
Internet Protocol Security Key Negotiation
Encapsulating Security Payload
Mobility and Multi-Homing Protocol
Mobility Manager

Apart from offering the most secure data tunneling and the most seamless VPN connection, the IKEv2 offers a unique benefit called IP Persistence. IP Persistence works by maintaining a VPN connection for the short period of time internet services drop or get disconnected and then get reconnected again. By holding on to the existing IP address, IP Persistence ensures that the VPN connection does not have to go through the entire process of establishing a VPN connection again.