Configuring The Pix 501 - Cisco PIX 501 Quick Start Manual

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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.
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Cisco PIX Firewall Command Reference.
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