User`s manual

Installing the DFL-500
This chapter describes how to install the DFL-500 firewall between your network and the Internet. After you
have completed the procedures in this chapter, your DFL-500 will be up and running and protecting your
internal network.
This chapter includes:
Before you start •
Unpacking the DFL-500 •
Mounting the DFL-500 •
Powering on the DFL-500 •
Using the firewall setup wizard •
Configuring the DFL-500 from the CLI •
Connecting the DFL-500 to your network •
Configuring your internal network •
Completing the configuration •
Before you start
Before starting the installation of the DFL-500, you must decide whether you are going to be running it in NAT
mode or Transparent mode. This choice determines the information that you require to install the DFL-500 as
well as the installation steps that you perform.
NAT mode install
Use NAT mode configuration information to collect the information required to configure the DFL-500 to run in
Network Address Translation (NAT) mode.
NAT mode configuration information (Part 1 of 2)
1. Administrator
Password
Create an administrator password. The password should be difficult to guess. It must be at least
6 characters long and can contain numbers (0-9) and upper and lower case letters (A-Z, a-z),
and the special characters - and _. Spaces and the @ character are not allowed.
2. Internal Interface
In the space below, record the IP address and netmask to connect the DFL-500 to your internal
network.
IP* Netmask
If your ISP has assigned you a static IP address, put a check mark next to Manual below. Record
the Manual IP address and netmask to connect the DFL-500 to the internet and record the IP
address of your default internet IP gateway.
If your ISP supplies you with an IP address using DHCP or PPPoE, check the appropriate box
below.
Record the IP address of your default Internet gateway as assigned by your ISP.
Manual DHCP
PPPoE
IP* Mask
Gateway
3. External Interface
DFL-500 User’s Manual
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