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Scenario 2—Managed VPN Service over G.shdsl
Figure 3
Secure VPN through the Internet over G.shdsl
Service providers can deliver a managed VPN service for business customers that takes advantage of the huge cost-saving
opportunities of VPN technology by deploying VPNs over G.shdsl. Symmetrical bandwidth and high bit rates allow
customers to deploy mission-critical applications to remote sites at an affordable cost without the fear of compromising data
security. The Cisco 1700 G.shdsl solution, along with an optional hardware encryption module, can deliver
hardware-encrypted data at wire speeds (T1/E1). VPN technology with IPSec 3DES combined with integrated Cisco IOS
Firewall technology gives branch offices the added security needed for an “always-on” connection to the Internet.
Scenario 3—Managed VoIP Service
Figure 4
Intranet Toll-Quality Voice
Internet
Service
Provider
IPSec and Stateful Firewall
on Cisco Enterprise CPE
IPSec and
Stateful Firewall on
Cisco Enterprise CPE
Cisco 1700 with G.shdsl
and VPN Module
Small Medium Business/
Small Branch Office
3DES
Encryption
Corporate
Headquarters
Gatekeeper
PBX
Key
System
Small/Medium Business
Small Branch
Office
Corporate
Gateway
Cisco 3600
H.323 RAS
IP+ATM
Network
Voice
Gateway
Cisco 1700
with G.shdsl
Cisco 1700
with G.shdsl
DSLAM
DSLAM
V
V
PSTN
PSTN