Cisco PIX 520 - PIX Firewall 520 Online Help Manual page 226

PIX Device Manager Startup Wizard
>Interface Configuration
The Interface Configuration panel allows you to configure network interfaces on your PIX Firewall.
The following sections are included in this Help topic:
Important Notes
Field Descriptions
Resetting to Last Applied Settings
Important Notes
The PIX Device Manager recognizes which hardware interfaces already exist on your PIX Firewall. From this
panel you can specify the speed at which they run, and a name, an IP address, and the subnet mask for that
address.
Field Descriptions
The Interface Configuration panel displays the following fields:
DHCP Configuration—If your ISP supports DHCP, you can choose to have DHCP check your outside
interface IP address and set the default route, by selecting the appropriate box.
Hardware ID—Lists the hardware name for each network interface card that specifies the interface's slot
location on the PIX Firewall unit. Interfaces are numbered from the left slot nearest the power supply as
slot 0, which is the lowest security level external interface to slot 1, where the internal network interface
must be, to slot 2, which is the next lowest security level, and so on.
Speed—Provides a box where you specify the speed of each network interface. Do not specify a speed for
a FDDI interface. We recommend that you do not use the auto speed.
Name—Allows you to define a name for a network interface. By default, PIX Firewall names the inside
interface "inside," the outside interface "outside," and any perimeter interface "perimetern," where n is 2
through 5. You can specify up to 48 characters per perimeter interface name. "Inside" and "Outside"
interfaces cannot be renamed.
IP Address—Assign an IP address to each interface in your PIX Firewall. The IP address you assign must
be unique for each interface. Do not use addresses previously used for routers, hosts, or any other PIX
Firewall commands, such as an IP address in the global pool or for a static NAT entry. The wizard will not
allow the inside interface's IP address to be changed, nor can the inside interface be disabled.
Netmask—Assign a network mask for the IP address. It is necessary for Class A addresses (those that