CLs Configuring Router ACLs Configuring VLAN Maps Reflexive Access Lists Configuring Reflexive Access Lists 26. Authentication in Cisco Devices Basic (Non-AAA) Authentication Line Passwords Configuring Local Users PPP Authentication AAA Authentication Enabling AAA Configuring Security Server Information Creating Method Lists Applying Method Lists Basic Firewall Theory Best Practices The DMZ Another DMZ Example Multiple DMZ Example Alternate Designs ASA Firewall Configuration Contexts Interfaces and Security Levels Names Object Groups Inspects Managing Contexts Context Types The Classifier Table of Contents Configuring Contexts Interfaces and Contexts Write Mem Behavior Failover Failover Terminology Understanding Failover Configuring Failover-Active/Standby Monitoring Failover Configuring Failover-Active/Active NAT Commands NAT Examples Miscellaneous Remote Access Saving Configuration Changes Logging Troubleshooting 29. Wireless Wireless Standards Security Configuring a WAP MAC Address Filtering Troubleshooting 30. VolP How VoIP Works Protocols Telephony Terms Cisco Telephony Terms Common Issues with VoIP Small-Office VoIP Example VLANs Switch Ports QoS on the CME Router DHCP for Phones TFTP Service Telephony Service Dial Plan Voice Ports Configuring Phones Dial Peers Table of Contents Troubleshooting Phone Registration Dial Peer Introduction to QoS Types of QoS QoS Mechanics Priorities Flavors of QoS Common QoS Misconceptions QoS "Carves Up" a Link into Smaller Logical Links QoS Limits Bandwidth QoS Resolves a Need for More Bandwidth QoS Prevents Packets from Being Dropped QoS Will Make You More Attractive to the Opposite Sex Designing QoS LLQ Scenario Protocols Priorities Determine Bandwidth Requirements Configuring the Routers Class Maps Policy Maps Service Policies Traffic-Shaping Scenarios Scenario 1: Ethernet Handoff Scenario 2: Frame Relay Speed Mismatch 33. The Congested Network Determining Whether the Network Is Congested Resolving the Problem 34. The Converged Network Configuration Monitoring QoS Trouble