RE: Need info on VPN.

Tue, 21 Nov 2000 12:02:34 -0800

Good point.  We generally define VPN's in one of three ways:
 
- remote access VPN's - used for folks to reach corporate networks via their home or mobile Internet connection
- point-to-point intranet VPN's - used to replace traditional leased line services (or frame relay)
- point-to-point extranet VPN's - used to connect corporations together over the Internet
 
You could also define a fourth class if you look at dial-up services such as CompuServe that can route analog calls across their network to a gateway into the corporate network.
 
Within each of these classes, there are multiple ways of provisioning VPN services.  FWIW, I don't know of anyone today that is deploying MPLS-based VPNs (either based on RFC 2547 or the Virtual Router concept), though I expect we'll see those sorts of services toward the end of next year.  The nicest feature of the MPLS approach is that you can connect sites using private addressing via the public Internet.
 
As far as books, I recommend "Building and Managing Virtual Private Networks" by Dave Kosiur.  Disclaimer: Dave and I work together at The Burton Group. 
 
Irwin
-----Original Message-----
From: Peter Van Oene [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, November 21, 2000 12:47 PM
To: [EMAIL PROTECTED]
Subject: RE: Need info on VPN.

this rfc pertains to service provider vpn's leveraging mpls/bgp implementations.  Its likely a fairly complex topic for those who are interested in a general understanding of the "vpn" concept.  I will personally suggest that vpn is one of the more overused and ambiguous terms floating around these days "thank you multi million dollar marketing machines".
 
I would suggest picking up a basic book on vpns and focusing on various encryption/authentication methods.  Spending some time on the IPSec suite might prove beneficial.
 
I would also suggest that in the time it took to ask the question, a search on any internet search engine would likely have delivered countless resources :)
 
Pete
 
 

*********** REPLY SEPARATOR ***********

On 11/21/2000 at 5:20 PM Ikpasa, Kerry wrote:
Read RFC 2547
 
Cheers
Kerry
-----Original Message-----
From: Patrick Bass [mailto:[EMAIL PROTECTED]]
Sent: 21 November 2000 4:31 PM
To: [EMAIL PROTECTED]
Subject: Re: Need info on VPN.

Hi,
    can you suggest some sites that are giving detailed informations about VPN (Virtual Private Network)
 
Thx,
karthi

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