The
router CPU processes the WebVPN connections. The on-board VPN acceleration that is
available in integrated services routers accelerates only IPsec connections.
Components of VPNs
Cisco provides a suite of VPN-optimized routers. Cisco IOS Software that is running on
Cisco routers combines rich VPN services with industry-leading routing, thereby delivering
a comprehensive solution. The Cisco VPN software adds strong security through
encryption and authentication. These Cisco VPN??“enabled routers provide high
performance for site-to-site, intranet, and extranet VPN solutions. Figure 8-6 shows how
routers can be used to provide VPN solutions.
Figure 8-6 VPN on Cisco IOS Routers
Internet
Main Office
Cisco Router
SOHO
Cisco Router
Regional Office
Cisco Router
Remote Office
Cisco Router
306 Chapter 8: Extending the Network into the WAN
For VPN services, Cisco ASA 5500 Series adaptive security appliances offer ?¬‚exible
technologies that deliver tailored solutions to suit remote-access and site-to-site
connectivity requirements. ASA 5500 Series adaptive security appliances provide easy-tomanage
IPsec remote access and network-aware site-to-site VPN connectivity, enabling
businesses to create secure connections across public networks to mobile users, remote
sites, and business partners.
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