Cisco TSHOOT 2.0: Troubleshooting Security Issues
This course is included in our On-demand training solution.
Layer 2 security implementation is often forgotten. However, you should take the basic security measures to guard against a host of attacks that can be launched at a switch and its ports. Equally important is how to recognize and solve issues that may occur.
This course describes how to diagnose and troubleshoot port security, spoofing, and virtual LAN access control list (VACL) problems using the Cisco IOS command line interface. It will also explain how to diagnose and resolve AAA and 802.1x port-based authentication problems.
Professionals who work in complex network environments desiring the skills they need to maintain their networks and to diagnose and resolve network problems quickly and effectively. The TSHOOT learning path will provide information about troubleshooting and maintaining particular technologies, as well as procedural and organizational aspects of the troubleshooting and maintenance process. A large part of the training will consist of practicing these skills and reinforcing the concepts by putting them to use in a controlled environment. At the end of the learning path, you should have increased your skill level and developed a set of best practices that are based on your own experience that you can take back to your organization.
Port Security Issues Overview
Port Security Issues: Not Enabled on Interface
Port Security Issue: Static MAC Address Misconfigured
Port Security Issue: Maximum MACs per Port Reached I
Port Security Issue: Maximum MACs per Port Reached II
Port Security Issue: Sticky MAC Addresses Not Saved
Spoofing Mitigation Issues
Spoofing Mitigation Issues: Misconfigured DHCP Snooping
Spoofing Mitigation Issues: Misconfigured DAI
Spoofing Mitigation Issues: IP Source Guard Issue
PVLANs and Protected Port Issues
PVLANs and Protected Port Issues: PVLANs Community VLAN
PVLANs and Protected Port Issues: PVLANs Isolated VLAN
VACL Issues I
VACL Issues II
IPv4 and IPv6 ACL Issues
ACL: Configuration Guidelines
IPv4 and IPv6 ACL Issues Demonstration
Troubleshooting AAA: Method List Issues
802.1x Port Based Authentication Troubleshooting
Practice Topic: Troubleshoot Security Issues