http://www.cisco.com/warp/public/784/packet/july98/6.html
Technically Speaking: Policy-Based Networking in IP Virtual Private
Networks
By Rob Redford, Director of Product Marketing,
Cisco Systems WAN Business Unit
If you're managing a fast-growing intranet or planning an extranet, you've
probably considered building a virtual private network (VPN) for IP
services that uses the Internet or a service provider's private backbone,
instead of expensive, less flexible private lines. For most network
managers, I believe it's not a question of whether you'll implement that
VPN or not, it's simply a question of when.
To save money and hassle, many companies setting up VPNs today will decide
to outsource some or all of the job to a service provider. But sharing
the responsibility for your VPN presents a new challenge. How will you
retain control over your company's mission-critical data when the portion
of the data-handling network that's owned and operated by your service
provider becomes larger?
The answer lies in policy-based networking, an emerging capability that
ultimately will give you the same control over your service provider's
network that the CiscoAssure Policy Networking initiative gives you over
your own. The start of this trend can be seen today in dialup IP-based
VPNs that let subscribers control their own security policies with a
CiscoAssure server.
[snip...]
-o-
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Received on Tue Jul 28 10:53:42 1998