Site to Site VPN

The site to site VPN solutions provide security at the same time being affordable. It provides broadband connection via internet. It also meets WAN requirements apart from adding cheer to many businesses. 


More and more enterprises are following a distributed business model. Branch offices extend an enterprise's reach into key markets. Communication between the central office and branch office is vital to applications that support the business. Security between branch office, point of sales or remote locations and the central office is important. In the past leased lines was a secure but a costly option. Virtual private networks create VPN tunnels on the internet for the secure transportation of data. VPN technologies is a cheaper alternative to dedicated leased lines WAN. Many technologies are invading the market and making a choice is difficult. There options among VPN technology are varied and differ based upon VPN hardware and VPN software.

Traditional site to site connections were between to intranets or two Local area networks. These connections were leased, dedicated lines. These required constant management and its deployment was difficult. Affordable site to site VPN solutions have brought about secure broadband connections via the internet. The ubiquitous internet and VPN has brought cheer to ERP, CRM and many other businesses. As alternatives to the WAN infrastructure site to site VPN's does not change the private WAN requirements. It meets WAN requirements like support of multiple protocols, high reliability and scalability at a lesser cost.


Site to site VPN solutions

Security of a general purpose computer cannot be guaranteed now days. New viruses and worms and malware spread via the internet. Many of those who use the internet are unaware of the threats to which their system is exposed. Large corporations cannot put up with these as they cause a huge loss to business. The options VPN's offer toward this threat is based on software and hardware.
Software based VPN Firewall/Gateways
These systems have their inherent problems. They require a computer that has a faster speed of processing. The processing of data for security and VPN applications is very intensive and places demands on the computer which in turn slows down the network. For any business it is therefore optimum to have another server only for VPN transaction. The operating system is to be free from loopholes that crooks could manipulate to access data. It is therefore necessary that you constantly update and download security patches so that your network is not compromised. The server and its associated software's, complexity and the management of the network are problematic issues for a business.
Hardware based Firewalls/VPN solution
These solutions exemplify security and also off-load the firewall and VPN processing from the server/computer. The security appliance protects the network at the internet gateway which is the VPN router and provides seamless local or remote management of security and remote access services. These security appliances are application specific integrated circuits which have powerful onboard processors handling the demands or firewall and VPN processing.
Unified Threat Management Systems
These devices are Firewall/hardware based solutions that intergrate a host of other functions like securing internet tunnels, filtering emails for spam and viruses, avoiding mails that involve in phishing, blocks spyware, detects and prevents attacks against specific applications that are vulnerable and filters URL's as well. The company that sells these devices also sells gateway software to be run on a range of standard server hardware. Add on cards can be fitted into the existing machine so increase speed and also provide the additional security.
Intranet based Site to site VPN
Any business that has more than one remote location can used dedicated equipment that provides encryption and authentication to establish a VPN between both the sites. The branch office LAN can be connected to the central office LAN via the internet using a VPN solution. This connection of the tow LAN's is called an intranet based site to stier VPN.
Extranet based site to site VPN.
One or more companies with intranet based VPN's has a close cooperation with another company in providing specialized service to customers or suppliers can build a virtual private network that allows all of the companies to work in a shared environment over the internet. This type of a VPN is an extranet based solution to business enhancement.

Site to site VPN Products
The VPN solutions by companies are varied and cater to different aspects of the market. Some solutions are software based others are hardware based; still others provide a mixture of both software and hardware. VPN solutions are provided dependent on the platform and operating system of the machine.
  • Microsoft has brought out the ISA-Internet security and Acceleration server software to cater to the growing needs of enterprises using the internet as a medium of communication. The step by step set up and configuration of the ISA server and the remote access to the ISA server is available on the Microsoft website. Many other VPN consultants have online articles on the connection and configuration process.
  • Companies that offer specific products like hardware provide the necessary support on their websites so that you can configure the software you have for optimum security and performance.
  • CISCO offers Cisco PIX 500 series security appliances (PIX 515E, PIX 525, and PIX 535) and the Cisco ASA 5500 series security appliances (ASA 5510, ASA 5520, and ASA 5540) for VPN
  • Firewall/VPN Appliances offered by Sonic wall use ICSA deep packet inspection firewall and IPSec for encryption The many devices offered are PRO 5060, PRO 4100, PRO 4060, PRO 3060, PRO 2040, PRO 1260, TZ 170 SP Wireless, TZ 170 Wireless, TZ 170 SP, TZ 170, TZ 150 Wireless and TZ 150.
  • AEP Systems delivers hardware security and acceleration solutions which include SSL VPNs,high-security VPN encryptors and SSL acceleration hardware.These are SureWare NEt, SureWare Keyper, and SureWare A-Gate. Netilla Networks, Inc. is a leader in secure application access solutions along with AEP systems it offers solutions for VPN. Its Security Platform-NSP suite is for SSL VPN solutions, Netilla Secure Gateway Appliance (SGA) is for midsize business that need SSL VPN solutions.
  • SonicWALL site to site VPN along with Internet security appliances offer traditional site-to-site connections to securely communicate with their multiple locations.
Site to site VPN solutions can adopt any protocol for its security and authentication. PPTP,L2TP,IPSec, SSL all differ in areas of implementation. The choice of VPN network connection for intranet or extranet based site to site VPN's should not compromise the security of the sister network.

Comments

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