
User Guide vii
Contents
CHAPTER 1 Introduction to Network Security ........................1
Network Security .....................................................................1
About Networks .......................................................................1
Clients and servers ...............................................................1
Connecting to the Internet .......................................................2
Protocols .................................................................................2
How Information Travels on the Internet ...................................3
IP Addresses ...........................................................................3
Network addressing ..............................................................4
About DHCP .........................................................................4
About PPPoE ........................................................................4
Default gateway ...................................................................4
Domain Name Service (DNS) ...................................................4
Services ..................................................................................4
Ports .......................................................................................5
Firewalls ..................................................................................6
The Firebox® X Edge and Your Network ...................................7
CHAPTER 2
Installing the Firebox X Edge
e-Series9
Installation Requirements ........................................................9
Package Contents ...................................................................9
Identifying Your Network Settings ...........................................10
About network addressing ...................................................10
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