Motivation
Private
Network:
192.168.5.0/24
Private VS Public Can
we have access?
Public
Access:
AOL, DSL,
Cable Modem, etc
IMPOSSIBLE!!
• Machines on Private Networks are not routable
• In other words, you won’t be able to directly
log onto
machines on private networks through public access such as AOL or DSL
• Why? That’s how the internet is designed