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Quick Comparison: IPSEC vs DMVPN vs EasyVPN vs GETVPN

In this article, I am going to explain the quick comparison difference between the various tunnelled VPN technologies which includes IPSEC, DMVPN, EasyVPN and GETVPN. I already wrote two articles on DMVPN and a difference between DMVPN with IPSEC tunnelling techniques.

In this article i am going to compare as i discuss between all the other VPN technologies with IPSEC and DMVPN. I will cover a short description of EasyVPN and GETVPN here. From the above mentioned articles you will came to know about the IPSEC and DMVPN.

EasyVPN- EzVPN
EasyVPN uses the Unity client protocol, which allows most IPSec VPN parameters to be defined at an IPSec gateway, which is also the EzVPN server. When an EzVPN client initiates an IPSec tunnel connection, the EzVPN server pushes the IPSec policies and other attributes required to form the IPSec tunnel to the EzVPN client and creates the corresponding IPSec tunnel connection. 
Fig 1.1- Use of EzVPN in Enterprise Network

The tunnel on the EzVPN client can be initiated automatically or manually, or it could be traffic triggered, depending on the configuration or type of EzVPN client used. Minimal configuration is required at the EzVPN client.

 Easy VPN providing following general configuration process:
  • Easy VPN Negotiating tunnel parameters: In the EasyVPN, it can be done with encryption algorithms, SA lifetimes, and so on.
  • Easy VPN User authentication: In Easy VPN, it can entails validating user credentials by way of XAUTH.
  • Easy VPN Automatic configuration: In EasyVPN, It can be Performed by pushing attributes such as IP address, DNS, WINs, and so on, using MODECFG.
GETVPN
GETVPN is called as Group Encrypted Transport VPN; it eliminates the need for compromise between network intelligence and data privacy in private WAN environments. GET VPN simplifies the provisioning and management of VPN. GET VPN defines a new category of VPN, one that does not use tunnels.

Fig 1.2- Use of GETVPN in a Enterprise Network

So GETVPN is not a point to point VPN technology to connect with your remote locations.GDOI is a group key management protocol used to provide a set of IPSec keys to a group of IOS devices called Group Members (GM) that wish to communicate securely i.e. GDOI is run between a GM and a Key Server (KS). These keys are periodically refreshed on all devices using a process called rekey

  • With the help of GETVPN, you can Simplifies branch instantaneous communications and ensures low latency and jitter by enabling full-time, direct communications between sites, without requiring transport through a central hub.
  • With the help of GETVPN you can Maximises your network security and it provides encryption for MPLS networks while maintaining network intelligence such as full-mesh connectivity, natural routing path, and quality of service (QoS).
  • With the help of GETVPN you can complies with governmental regulation and privacy laws and it helps you meet security compliance and internal regulation by encrypting all WAN traffic
  • GETVPN will give you the management flexibility and eliminates complex peer-to-peer key management with group encryption keys
Let's talk about the feature comparison between all these VPN techniques : IPSEC, DMVPN, EasyVPN and GETVPN.

Fig 1.3- Comparison Features between IPSEC, EasyVPN, DMVPN and GETVPN.
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