User's Manual

Table Of Contents
Identifying Your Network Settings
User Guide 13
An Internet connection that operates.
The external network connection can be a cable or DSL modem with a
10/100BaseT port, an ISDN router, or a direct LAN connection. If the
Internet connection does not operate, speak to your Internet Service
Provider (ISP).
Identifying Your Network Settings
You use an Internet Service Provider (ISP) to connect to the Internet.
These ISPs give all computers an Internet Protocol (IP) address. An
ISP can give you a static or dynamic IP address. A static address is an
address that stays the same. A dynamic address is an address that
can change each time you connect to the Internet. When you close a
dynamic Internet connection, the dynamic address goes to the list of
available addresses.
Your ISP gives you an IP address using one of these:
Static: Web servers, FTP Web sites, and other Internet resources
that must have an address that cannot change get static a IP
addresses.
DHCP: ISPs use the Dynamic Host Configuration Protocol
(DHCP) to give you a dynamic IP address. Each time you
connect to the ISP, a DHCP server can give you a different IP
address.
PPPoE: ISPs use Point-to-Point Protocol over Ethernet (PPPoE)
to give you a dynamic IP address or a static IP address. A user
name and passphrase are necessary for PPPoE.
An ISP can also give a network mask (netmask) to a computer. A
netmask is a string of bits that "mask" one part of an IP address.
You use a netmask to divide your network into smaller units, and
creating added destinations to which you can send routed traffic.
Read your DSL or cable modem instructions or speak to your ISP to
learn if you have a dynamic IP address or a static IP address.
Finding your TCP/IP properties
Transmission Control Protocol/Internet Protocol (TCP/IP) is the pri-
mary protocol computers use to connect to the Internet. To use
TCP/IP, your computer must have an IP address and information
about the computer network of your ISP. You must have this infor-
mation to install your Firebox X Edge.