Let's see the basic configuration setup of the most important steps that you need to configure. We will cover how to design a fundamental ACL (Access Control List), Network Address Translation (NAT), and a basic.

The following illustration is the system topology that the Cisco ASA 5506-X model depends on. By default, interface Ethernet0/0 is assigned to VLAN 2 and it's the outside interface (the one which connects to the Internet), and the other 7 interfaces (Ethernet0/1 to 0/7) are assigned by default to VLAN 1 and are used for connecting to the internal network. Today, in the Cisco ASA 5506-X model, we will cover the ASA firewall configuration step-by-step, for your typical business organization. That is, you can not configure the physical ports as Layer 3 ports, rather you have to create interface Vlans and assign the Layer 2 interfaces in each VLAN. The difference of the 5505 model from the bigger ASA models is that it has an 8-port 10/100 switch which acts as Layer 2 only.

We will use Port Address Translation (PAT) to translate our internal IP addresses to the public address of the outside interface. We assume that our ISP has assigned us a static public IP address (e.g 200.200.200.1 as an example) and that our internal network range is 192.168.1.0/24.

So if you have firmware 8.2 on that ASA, you have to configure nat with the commands 'nat', 'global' and 'static', if you have firmware 8.3 or newer, you have only a 'nat' command. In this article I will explain the basic configuration steps needed to setup a Cisco 5505 ASA firewall for connecting a small network to the Internet (here the complete guides). Cisco Security Appliance Command Line Configuration Guide, Version 7.2 - Configuring Interfaces for the Cisco ASA 5505 A. Cisco ASA 5505 Basic Configuration Tutorial Step by Step Step1: Configure the internal interface vlan Step 2: Configure the external interface vlan (connected.

Cisco 5505 asa configuration guide