RE: Extranet vs. VPN (was: Non-IPsec VPN products)

["MONTENEGRO,FERNANDO (HP-Canada,ex1)" <fernando_montenegro () hp com>]

Hi!

I always considered the following:
- VPN - Virtual Private Network (though Marcus initially called them Virtual
Network Perimeters, which I though was more appropriate) - technology for
implementing "private" communications over "public" networks. This can mean
many things, including things like routing policies, layer 2 (L2TP,L2F,...),
layer 3 (IPSec,swIPe,...), layer 4 (SOCKS, SSL) tunnelling, among others.
- Extranet - the marketing-friendly term for the "environment" consisting of
the infrastructure shared between your company and your partners, including
communication links (with or without VPNs), access to partner-only
applications (such as order tracking, inventory, ...) 

So in this case an Extranet uses VPNs as part of the technologies used to
implement it.

HTH.

Cheers,
Fernando
--
Fernando S. Montenegro, CISSP  -  fernando_montenegro () hp com
DISCLAIMER: Opinions expressed above are my own and do not necessarily
reflect those of my employer.


> -----Original Message-----
> From: Crispin Cowan [mailto:crispin () wirex com]
> Sent: Thursday, August 23, 2001 3:39 PM
> To: marcvh () aventail com
> Cc: firewall-wizards () nfr com
> Subject: Extranet vs. VPN (was: [fw-wiz] Non-IPsec VPN products)
>
>
> marcvh () aventail com wrote:
>
> > Like so many things, it depends on how one decides what is 
> and is not a
> > "VPN."  Aventail now positions its technology as an 
> "extranet" rather than
> > a VPN, though it does solve some of the problems that 
> people are talking
> > about when they say "VPN."
>
> So what's the difference between "extranet" and "VPN"? I 
> always thought of
> "extranet" as "VPN to my remote locations" which is only barely
> distinguishable (at a technical/product level) from "VPN to 
> my corporate
> partners."  The distinction appears to be what you use your 
> VPN for, but the
> product remains the same.
>
> So what is the difference (in your terms) between an extranet 
> and a VPN?
>
> Crispin
>
> --
> Crispin Cowan, Ph.D.
> Chief Scientist, WireX Communications, Inc. http://wirex.com
> Security Hardened Linux Distribution:       http://immunix.org
> Available for purchase: 
http://wirex.com/Products/Immunix/purchase.html


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