新增的CCNA Security课程为希望提高CCNA认证级技能的学生提供了进一步深造的机会，且有助于满足市场对具有专业网络技能人士与日俱增的需求。 该课程介绍了一系列核心的安全理念和技能，包括网络设备的安装、故障排除和监控，以便保持数据及设备的完整性、可靠性和可用性。 思科网络技术学院开发的强大仿真、可视化软件Cisco Packet Tracer已进行了优化和增强，从而能够支持CCNA Security课程中包含的安全协议。 CCNA Security课件和Cisco Packet Tracer 5.2现已推出。

实验报告包含详细的实验截图和命令 Task 1: Configure Local AAA Authentication for Console Access on R1 Step 1. Test connectivity. · Ping from PC-A to PC-B. · Ping from PC-A to PC-C. · Ping from PC-B to PC-C. Step 2. Configure a local username on R1. Configure a username of Admin1 and secret password of admin1pa55. Step 3. Configure local AAA authentication for console access on R1. nable AAA on R1 and configure AAA authentication for console login to use the local database. Step 4. Configure the line console to use the defined AAA authentication method. Enable AAA on R1 and configure AAA authentication for console login to use the default method list. Step 5. Verify the AAA authentication method. Verify the user EXEC login using the local database. Task 2: Configure Local AAA Authentication for VTY Lines on R1 Step 1. Configure a named list AAA authentication method for VTY lines on R1. Configure a named list called TELNET-LOGIN to authenticate logins using local AAA. Step 2. Configure the VTY lines to use the defined AAA authentication method. Configure the VTY lines to use the named AAA method. Step 3. Verify the AAA authentication method. Verify the Telnet configuration. From the command prompt of PC-A, Telnet to R1. Task 3: Configure Server-Based AAA Authentication Using TACACS+ on R2 Step 1. Configure a backup local database entry called Admin. For backup purposes, configure a local username of Admin and secret password of adminpa55. Step 2. Verify the TACACS+ Server configuration. Select the TACACS+ Server. From the Config tab, click on AAA and notice that there is a Network configuration entry for R2 and a User Setup entry for Admin2. Step 3. Configure the TACACS+ server specifics on R2. Configure the AAA TACACS server IP address and secret key on R2. Step 4. Configure AAA login authentication for console access on R2. Enable AAA on R2 and configure