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Cisco ASA 5500 Series Configuration Guide using ASDM
OL-20339-01
Chapter 2 Getting Started
Factory Default Configurations
Detailed Steps
Step 1 In the main ASDM application window, choose File > Reset Device to the Factory Default
Configuration.
The Reset Device to the Default Configuration dialog box appears.
Step 2 (Optional) Enter the Management IP address of the management interface, instead of using the default
address, 192.168.1.1. For an adaptive security appliance with a dedicated management interface, the
interface is called “Management0/0.” For other adaptive security appliance, the configured interface is
Ethernet 1 and called “inside.”
Step 3 Choose the Management (or Inside) Subnet Mask from the drop-down list.
Step 4 To save this configuration to internal flash memory, choose File > Save Running Configuration to
Flash.
Choosing this option saves the running configuration to the default location for the startup configuration,
even if you have previously configured a different location. When the configuration was cleared, this
path was also cleared. The next time you reload the adaptive security appliance after restoring the factory
configuration, the device boots from the first image in internal flash memory. If an image in internal flash
memory does not exist, the adaptive security appliance does not boot.
What to Do Next
See the “Getting Started With the Configuration” section on page 2-8 to start configuring the adaptive
security appliance.
ASA 5505 Default Configuration
The default factory configuration for the ASA 5505 adaptive security appliance configures the
following:
• An inside VLAN 1 interface that includes the Ethernet 0/1 through 0/7 switch ports. If you did not
set the IP address, then the VLAN 1 IP address and mask are 192.168.1.1 and 255.255.255.0.
• An outside VLAN 2 interface that includes the Ethernet 0/0 switch port. VLAN 2 derives its IP
address using DHCP.
• The default route is also derived from DHCP.
• All inside IP addresses are translated when accessing the outside using interface PAT.
• By default, inside users can access the outside, and outside users are prevented from accessing the
inside.
• The DHCP server is enabled on the adaptive security appliance, so a PC connecting to the VLAN 1
interface receives an address between 192.168.1.2 and 192.168.1.254.
• The HTTP server is enabled for ASDM and is accessible to users on the 192.168.1.0 network.
The configuration consists of the following commands:
interface Ethernet 0/0
switchport access vlan 2
no shutdown
interface Ethernet 0/1
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