One of the prime importances of any organization’s operations is to maintain the security of internal data as well as their client’s as well as customers’ data. In the gone by times there were many companies who did not take the concept of information security seriously and for that occurrences of stolen data, information being hacked or facts being disclosed to third parties increased significantly. Even today, such incidents take place, but the only difference is that they have become more visible and people have found ways to deal with it.
One of the major ways of dealing with this issue is implementing VPN or Virtual private network. They are employed in two ways- firstly for safeguarding the data from a host machine to a centralized location and secondly for protecting the information of one company network to another. These two VPN types have been used over cyberspace for many years.
GPE or Generic Routing Encapsulation
This is one conception which has been around for over two decades. It is the primary solution to the transport details from one network to the other. The main idea is to provide a smooth mode of transporting information over the IP medium. The protocol which is taken from the GPE tunnel might be a multiple supportive protocol, including the capability to more, the IP within a GPE/IP tunnel. Apart from that it can also move numerous protocols such as Apple talk, IPv4, IPv6 with IPv6 and IP being the most common ones. Archetypal configurations of GPE are mainly between two end points in a point to point style. However, modern implementations of Generic router Encapsulation have extended its common initial configurations, including VPN’s using GRE as a form of implementing numerous VPN technologies.
IP security is something which has also been around as long as GRE and is mainly employed for providing a sound and secure communication medium via an existing IP network. It is not a single protocol but instead a collection of protocols which is put to use in numerous ways based on the particular needs and requirements of the situation.
PPTP or point to point tunneling protocol
This has been around the cyber world since 1990 and was first used by the MS family for Windows 95 up gradation. Point to point tunneling makes a few advantages of other protocols and renders a complete solution incorporating PPP and a state of the art version of the GRE. It functions by setting up a control canal which is used after wards to make a data channel. This canal is then encapsulated along with GRE that carries a PPP frame, which supports numerous protocols also including IP. PPTP is also supportive of encryption, authentication and compression. However, despite of having a host of good points, it comprises of one flaw and that it in regards to confidentiality. The reasons are also clear enough. It uses MPPE or Microsoft point to point encryption and is supportive to RC4 encryption. This makes it a bit vulnerable.
Secure sockets layer SSL
This is one of the most talked VPN options in the modern world. It is easy to use employ as well as deploy and was primarily utilized to support through a central site which provided less support for a particular number of protocols. This is something which internet savvy blokes should be aware about as it is one of the protocols is used by the majority or site browsers. It is also which file transfer clients use to secure their communication. SSL VPN employs this technology to make a safe and secure canal for a vast variety of protocols.