What are the advantages & disadvantages of VPN ?
Advantages</p>
* Reduce cost implementation (We don’t need to use lease line/ ISDN/ FR, mobile only need to dial local ISP to connect to branch office)
* Security (VPN provide strong security mechanism through encryption, authentication etc)
* Lower cost (Bring down cost of Wan equipment)
* More Flexible
* Simple Management
* Interoperability of devices from multiple vendors
* Centralized VPN management
* Easy implementation
* Easy usability
* Scalability
* Performance
* Bandwidth management
* Service provider’s infrastructure
* High availability
Disadvantages
* Highly dependent on Internet
* Lack of support to legacy protocol</div>