ccna book todd lammle

ccna book todd lammle.Outbound traffic is allowed and checked by default. Return traffic is also allowed because of the status packet inspection. For example, internal users on the internal interface are free to access the resources of the DMZ±. They can also initiate connections to the Internet without any restrictions and without additional policies or additional commands. However, traffic is denied by default if it originates from the external network and is sent to the DMZ or the internal network. For return traffic, that is, traffic originating from the internal network and returning via the external interface, access will be granted. Any exceptions to this default behavior require an ACL to be configured to explicitly allow traffic from a lower security level interface to a higher security level interface (for example, from an external interface to an internal interface).The ASA5505 differs from other 5500 series ASA models. With other ASA products, you can directly assign a Layer 3 IP address to a physical port, just like a Cisco router. The ASA5505, on the other hand, has eight integrated switch ports that are Layer 2 ports and therefore cannot be assigned an IP address directly.In the ASA5505 ±, Layer 3 parameters can be configured in the Switching Virtual Interface (SVI). An SVL is a logical VLAN interface that requires a name, an interface security level, and an IP address. Layer 2 switching ports can be assigned to specific VLANs o Switching ports on the same VLAN can communicate with each other through hardware switching. However, when a switch port on VLAN 1 wants to communicate withswitch port I-I on VLAN 2, then the ASA enforces a security policy and routes traffic between the two VLANs.9.1.2.3 ASA 5505 Deployment ScenariosThe ASA 5505 is typically used as an edge security device to connect a small company to a 1SP device, such as a DSL or cable modem, to access the Internet. it can be used to connect and protect several workstations, network printers, and IP phones.In small branch office deployments, common deployments include an internal network (VLAN1) with a security level of 100 and an external network (VLAN2) with a security level of 0.260 Chapter 9 Implementing Cisco Adaptive Security Appliances ( ASA )network (VLAN 2) with a security level of 0o Fast Ethernet switching ports 6 and 7 are PoE ports. They can be assigned to VLAN 1 and are "? used to connect IP phones. In a small company, the ASA5505 can be deployed with two different protected network segments. The ASA5505 can be deployed with two different protected network segments in a small company: an internal network (VLAN 1) connecting workstations and IP phones; and a DMZ (VLAN 3) connecting workstations and IP phones. A DMZ (VLAN 3) connects to the company's Web server. The external interface (VLAN 2) is used to connect to the Internet. o In an enterprise network deployment, remote users and home users can use the ASA5505 to connect to the enterprise core via VPN.9.2 ASA Firewall Configuration