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IPSec vs MPLS VPN

Hi

Our remote access clients connect to our main location via a 3rd party MPLS solution and an IPSec VPN solution which we manage ourselves.

MPLS clients use PSTN, IDSN and ADSL technologies to connect to the MPLS cloud whereas IPSec VPN clients connect over the Internet using a leased line or ADSL solution to their service provider.

We also have a legacy RAS solution utilising ISDN/PSTN technologies for dialup access.

To increase manageability we would like to consolidate these systems.

The main question here is what advantages/disadvantages does an MPLS based VPN have over the traditional IPSec VPN?

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Re: IPSec vs MPLS VPN

The main advantage of an MPLS based VPN is that you can classify traffic and apply appropriate QoS to the different classes.

This type of network would be used to provide the same type of connectivity that was traditionally provided by frame relay or leased line type networks, where lower bandwidth costs and increased functionality is desirable. This is deployed over a private service provider backbone.

The type of IPSec based VPN's you describe are usually deployed over public Internet links, and offer low cost and quick installation. Usually QoS benefits are not possible over this type of network due to ADSL contention, and other factors, but its a cheaper solution.

However these technologies can be used together, I've installed several MPLS `private' networks that have IPSec to provide encryption of the end user data.

Hope that helps,

Andy

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