These ports cannot have an IP address assigned to them, but if you want to create Layer 3 interfaces, you can configure a virtual interface ( VLAN) and assign IP addresses there. Its main distinction from the higher-end models is the 8-port integrated switch, that allows to have 8 switch ports on board( Layer 2 of OSI model). For this example, we will use the junior model of the lineup – Cisco ASA 5505. Let’s look over an example of how to connect an office LAN to the Internet with using a Cisco ASA firewall.