Unit 4, How Data travels.

IP address for each computer: stands for Internet Properties
All info send over internet contains packets/frames of info

• Header:Senders/Receiver IP, Packet #
• Payload:Data
• Trailer:Data at end of packet 

 Routers remove Frame, move info to computer destination, Routers search for easiest path to final destination
Data can "hop" between routers
                 "Ping" evaluates connection between the sender and receiver. Is it a good connection or not.

• Firewall is a protector for your computer, they are custom made/modified

Internet is a fast/efficient way to deliver data.