Ideas in this flowchart

• IP addresses and network routing
• An IP address is a numerical identifier.
• It is used to locate a device or network.
• Routers use addressing information.
• Addressing information guides data movement.
• Routers use it to decide where data should travel.
• The router decides where data should travel.
• Public addresses identify Internet-facing networks.
• The identified networks face the Internet.
• Public addresses identify these networks.
• Private addresses are commonly used inside homes and organizations.
• Private addresses are used for devices inside homes.
• Private addresses are used for devices inside organizations.
• Devices inside homes use private addresses.
• Devices inside organizations use private addresses.