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
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
It is hard to implement and maintain a...