Cisco PIX 501 Panduan Memulai Cepat - Halaman 6

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Configuring the PIX 501

The PIX 501 comes with a factory default configuration that meets the needs of most broadband

networking environments. The factory default configuration on the PIX 501 protects your inside

network from any unsolicited traffic. It is configured to use DHCP on the outside interface to acquire its

IP address. A default DHCP server address pool is included for hosts on the inside interface.

By default, the PIX Firewall denies all inbound traffic through the outside interface. Based on your

network security policy, you should consider configuring the PIX Firewall to deny all ICMP traffic to

the outside interface, or any other interface you deem necessary, by entering the icmp command. The

icmp command controls responses to ICMP traffic that is directed at one of the PIX Firewall interfaces.

If no ICMP control list is configured, then the PIX Firewall will respond to all ICMP requests received

on any interface (including the outside interface).

For more information about the icmp command, refer to the

Instances in which it might be necessary to change or make additional changes to the default

configuration include the following:

• To create administrative and Telnet passwords

We highly recommend that you change the administrative and Telnet passwords from

Note

their default settings (no password) to secure the administration of your PIX Firewall.

• To configure Point-to-Point Protocol over Ethernet (PPPoE) or a static IP address for an outside

interface

• To configure VPN and Auto Update features

The PIX 501 contains an integrated configuration utility

called Cisco PIX Device Manager (PDM). PDM is a web

browser-based configuration tool designed to help you set

up, configure, and monitor the PIX Firewall. PDM is

preinstalled on the PIX 501. To access PDM, make sure

JavaScript and Java are enabled in your web browser. Refer

to the

Cisco PIX Device Manager Installation Guide

more information on the operating system and web

browser environments supported by PDM.

Cisco PIX Firewall Command Reference.

for