TAILIEUCHUNG - Internet Access from a VPN

Describe four major customer requirements for Internet access services. Classical Internet access implemented through a central firewall. Internet access from every VPN site, where each customer has its own independent Internet access. Internet access through a central firewall service (Internet access VPN). Wholesale Internet access service, where an ISP uses IP transport infrastructure of another Service Provider to reach the end-users n What are the addressing requirements for classical Internet access service? Private addresses on the inside of a firewall, public addresses on the outside and the firewall is doing NAT. n What are the security implications of having Internet access from every VPN site? It is hard to implement and maintain a. | 2 Internet Access from a VPN Integrating Internet Access with the MPLS VPN Solution Review Questions Describe four major customer requirements for Internet access services. Classical Internet access implemented through a central firewall. Internet access from every VPN site where each customer has its own independent Internet access. Internet access through a central firewall service Internet access VPN . Wholesale Internet access service where an ISP uses IP transport infrastructure of another Service Provider to reach the end-users What are the addressing requirements for classical Internet access service Private addresses on the inside of a firewall public addresses on the outside and the firewall is doing NAT. What are the security implications of having Internet access from every VPN site It is hard to implement and maintain a single security policy for the entire VPN. VPN sites could possibly use the Internet as transit between themselves. What are the addressing requirements when every VPN site has direct Internet access Each customer site needs public IP addresses. Some public IP addresses and Network Address Translation between the customer private IP addresses and the public IP addresses. What are the benefits of giving Internet access to every VPN site as compared to having a central exit point to the Internet The provider backbone does not need to carry the traffic twice The access line to the central site needs not to carry the entire VPN s Internet traffic Response time will benefit since the traffic is optimally routed What are the benefits of central firewall service The central firewall is managed by the service provider releaving the customer of this task in a more cost effective way. What are the addressing requirements of central firewall service 23-2 World Wide Training Word Templates v1 Copyright 1999 Cisco Systems Inc. The use of private addresses must be coordinated by the service provider just like public addresses are. How can customers .

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