Cisco ASA5505 Firewall

Posted: March 4, 2011 in Firewall, Networking, Server, Server 2003, Server 2008, System Information
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Cisco ASA5505 Firewall overview

Cisco ASA5505 firewall is a small box with the following layout:

It has eight Ethernet ports marked 0 to 7 and one Console port marked blue.

–  Connect the Console port to the local server or any computer from which you will configure the box: the Console      cable must be connected to Serial port of the computer. Note: it is needed for configuration only; later this    connection can be removed.

–  Port 0 of the ASA must be attached to Internet Provider’s equipment: connect it to the ISP modem.

–  Port 2 of the ASA must be attached to the local Ethernet switch.

–  Connect the Server and computers to the Ethernet switch.



In order to configure the firewall, you will need a configuration template (not included in this document, supplied as a separate file). Follow the instructions inside the configuration template in order to adjust it to the profile of your site and use the following configuration sequence:

–  Log in to the server or a computer that was connected to ASA box;

–  Open up the HyperTerminal program (Start à Programs à Accessories à Communications). Set up a new connection to COM1 port.

–  Clear any existing configuration from the firewall using the following set of commands:

Devicename> enable

Devicename# config terminal

Devicename(config)# clear configure all

Devicename(config)# write memory

–  While in configuration mode, copy-paste the configuration file that you prepared earlier.

–  Save the configuration of the firewall:

Devicename(config)# write memory


Having this done, your firewall is set up for operation. Verify if your internet are working.




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