Most CCNA students are familiar with two privilege levels, which are the privilege level 1(user EXEC mode) and the privilege level 15(privileged EXEC mode). Cisco IOS software offers 16 privilege levels numbered from 0 to 15. The privilege level 0 is the most restricted level (you cannot configure anything and you cannot display the router configuration). The privilege level 15 is the least restricted (you can do anything on the router). This article falls under the CCNA syllabus ’s objective “Implement basic router security”. The Cisco IOS software gives you the ability to attach...

CCNA Syllabus Introduction The actual CCNA syllabus’ topics give you a general view about the knowledge and skills required to study for the CCNA Exam 640-802. The CCNA exam tests you on the following area: OSI and TCP/IP models, Layer 2 protocols ( Frame Relay, HDLC, PPP, Ethernet,…), IP static routing, IP routing protocols, IPv6, network security( ACLs, VPN,…), router management( SNMP, SYSLOG, IOS backup/Recovery,…), IP services(DHCP, DNS, NAT,…), WLAN, SDM, Telnet/SSH,… Note that the topics below may change at any time without notice from Cisco. Open the link below for latest...

The Cisco Security Device Manager (SDM) is an intuitive, Web-based device management tool integrated within Cisco IOS access routers. Cisco SDM simplifies router and security configuration through sophisticated wizards, enabling customers to quickly and easily deploy, configure, and monitor a Cisco access router without involving knowledge of the Cisco IOS Software command-line interface (CLI). In addition, Cisco SDM is part of both the CCNA syllabus and CCNA Security exam. Cisco SDM provides users to easily configure Cisco IOS Software security features on Cisco access routers on a...

In this video, you’ll see how to decrypt a password already encrypted in the IOS configuration file. We’ll use this hidden password “08224F4008260C192D0A0F1023242A” in our demonstration. Configuring the enable password falls under the CCNA syllabus’s objective “Implement basic router security”. Have we missed something? Would like to learn something special about Cisco router’s passwords ? Contact us now, and we’ll provide you with the information satisfying your needs...

The first thing a CCNA student must know is the CLI modes. These mode are structured in a hierarchical fashion, and each mode allows a group of specific commands. To access the CLI, you can use the console port or a remote access protocol such as Telnet or Secure Shell (CLI’s modes are part of the CCNA syllabus). Some of the CLI modes you’ve to familiarize with are described bellow: User EXEC: To access this mode you must log in the router by using the console port or a remote access technique (telnet, ssh…). At this mode, the prompt displays Router>, and you can telnet into...

In general, a hostname is the unique name by which a device attached to the network is identified. The hostname is used to identify a particular host in various forms of network communication. This article falls under the CCNA syllabus’s objective “Access and utilize the router to set basic parameters”. In Cisco routers, the hostname attribute is locally significant. Thus, you can have many routers in the network with the same hostname. But, this is not recommended. During the PPP authentication, the routers send to each other their hostnames unless the ppp chap...