ccna book routing and switching pdf

ccna book routing and switching pdf.The discussion in this chapter focuses on routing mode.258 Chapter 9 Implementing the Cisco Adaptive Security Appliance (AS A)9.1.1.5 ASA Licensing RequirementsThe license specifies the options that can be enabled in the ASA±. Most ASA products come with either a Base (Base) license or a Security Plus license preinstalled. For example, the Cisco ASA 5505 model comes with a Base license and has the option to upgrade to a Security Plus license. The Security Plus upgrade license enables the Cisco ASA 5505 to be expanded to support higher connectivity and up to 25 IPSec VPN users. It adds full DMZ support and integration into switched network environments with VLAN trunking support. In addition, the security enhancement license maximizes business continuity by supporting redundant ISP connections and stateless active/backup high availability services.To provide additional features to the ASA, additional time-based or optional licenses can be purchased. For example, an administrator can install a time-based bot traffic filter license that is valid for one year. Another example is the optional AnyConnectPremium license that can be purchased if the ASA has to handle a short term spike in the number of concurrent SSLVPN users.By integrating these additional licenses into the pre-installed license, a permanent license can be created. Permanent licenses require a permanent activation key to be installed using the command activationkey to activate them. The permanent activation key includes the sex of all licenses in all individual keys. Product activation keys can be purchased through a Cisco customer representative.Note: Only one permanent license key can be installed, and once it is installed, it will be used as the running license. To verify the license information on the ASA device, you can use the showversion or showactivation-key command.9.1.2 Basic ASA Configuration9.1.2.1 ASA 5505 OverviewThe Cisco ASA 5505 is a full-featured security appliance for small business, branch office, and enterprise telecommuting environments. It provides a high performance