CCNA Security Course Content

Describe the security threats facing modern network infrastructures

» Describe and list mitigation methods for common network attacks
» Describe and list mitigation methods for Worm, Virus, and Trojan Horse attacks
» Describe the Cisco Self Defending Network architecture

Secure Cisco routers

» Secure Cisco routers using the SDM Security Audit feature
» Use the One-Step Lockdown feature in SDM to secure a Cisco router
» Secure administrative access to Cisco routers by setting strong encrypted passwords, exec timeout, login failure rate and using IOS login enhancements
» Secure administrative access to Cisco routers by configuring multiple privilege levels
» Secure administrative access to Cisco routers by configuring role based CLI
» Secure the Cisco IOS image and configuration file

Implement AAA on Cisco routers using local router database and external ACS

» Explain the functions and importance of AAA
» Describe the features of TACACS+ and RADIUS AAA protocols
» Configure AAA authentication
» Configure AAA authorization
» Configure AAA accounting

Mitigate threats to Cisco routers and networks using ACLs

» Explain the functionality of standard, extended, and named IP ACLs used by routers to filter packets
» Configure and verify IP ACLs to mitigate given threats (filter IP traffic destined for Telnet, SNMP, and DDoS attacks) in a network using CLI
» Configure IP ACLs to prevent IP address spoofing using CLI
» Discuss the caveats to be considered when building ACLs

Implement secure network management and reporting

» Use CLI and SDM to configure SSH on Cisco routers to enable secured management access
» Use CLI and SDM to configure Cisco routers to send Syslog messages to a Syslog server

Mitigate common Layer 2 attacks

» Describe how to prevent layer 2 attacks by configuring basic Catalyst switch security features

Implement the Cisco IOS firewall feature set using SDM

» Describe the operational strengths and weaknesses of the different firewall technologies
» Explain stateful firewall operations and the function of the state table
» Implement Zone Based Firewall using SDM

Implement the Cisco IOS IPS feature set using SDM

» Define network based vs. host based intrusion detection and prevention
» Explain IPS technologies, attack responses, and monitoring options
» Enable and verify Cisco IOS IPS operations using SDM

Implement site-to-site VPNs on Cisco Routers using SDM

» Explain the different methods used in cryptography
» Explain IKE protocol functionality and phases
» Describe the building blocks of IPSec and the security functions it provides
» Configure and verify an IPSec site-to-site VPN with pre-shared key authentication using SDM

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