"This slim tome is a veritable gem of a book. It is written in a logical and clear style that permits reading from start to finish, but each specific section is complete in it's own right and as such it allows the reader to pick up the book and dip read satisfactorily. I learnt things from this book, and for me that is the best recommendation I can give." - Raza Rizvi, news@UK

• Preface 1. Router Security Router Security? Routers: The Foundation of the Internet What Can Go Wrong What Routers Are at Risk? Moving Forward 2. IOS Version Security The Need for a Current IOS Determining the IOS Version IOS Versions and Vulnerabilities IOS Security Checklist 3. Basic Access Control Authentication Versus Authorization Points of Access Basic Access Control Remote Administration Protection with IPSec Basic Access Control Security Checklist 4. Passwords and Privilege Levels Password Encryption Clear-Text Passwords service password-encryption Enable Security Strong Passwords Keeping Configuration Files Secure Privilege Levels Password Checklist 5. AAA Access Control Enabling AAA Local Authentication TACACS+ Authentication RADIUS Authentication Kerberos Authentication Token-Based Access Control AAA Security Checklist 6. Warning Banners Legal Issues Example Banner Adding Login Banners Warning Banner Checklist 7. Unnecessary Protocols and Services ICMP Source Routing Small Services Finger HTTP CDP Proxy ARP Miscellaneous SNMP Unnecessary Protocols and Services Checklist 8. SNMP Security SNMP Versions Securing SNMP v1 and v2c Securing SNMP v3 SNMP Management Servers SNMP Security Checklist 9. Secure Routing and Antispoofing Antispoofing Routing Protocol Security Routing Protocol and Antispoofing Checklist 10. NTP NTP Overview Configuring NTP NTP Checklist 11. Logging Logging in General Router Logging ACL Violation Logging AAA Accounting Logging Checklist A. Checklist Quick Reference B. Physical Security C. Incident Response D. Configuration Examples E. Resources Index

"This slim tome is a veritable gem of a book. It is written in a logical and clear style that permits reading from start to finish, but each specific section is complete in it's own right and as such it allows the reader to pick up the book and dip read satisfactorily. I learnt things from this book, and for me that is the best recommendation I can give." - Raza Rizvi, news@UK

• Preface 1. Router Security Router Security? Routers: The Foundation of the Internet What Can Go Wrong What Routers Are at Risk? Moving Forward 2. IOS Version Security The Need for a Current IOS Determining the IOS Version IOS Versions and Vulnerabilities IOS Security Checklist 3. Basic Access Control Authentication Versus Authorization Points of Access Basic Access Control Remote Administration Protection with IPSec Basic Access Control Security Checklist 4. Passwords and Privilege Levels Password Encryption Clear-Text Passwords service password-encryption Enable Security Strong Passwords Keeping Configuration Files Secure Privilege Levels Password Checklist 5. AAA Access Control Enabling AAA Local Authentication TACACS+ Authentication RADIUS Authentication Kerberos Authentication Token-Based Access Control AAA Security Checklist 6. Warning Banners Legal Issues Example Banner Adding Login Banners Warning Banner Checklist 7. Unnecessary Protocols and Services ICMP Source Routing Small Services Finger HTTP CDP Proxy ARP Miscellaneous SNMP Unnecessary Protocols and Services Checklist 8. SNMP Security SNMP Versions Securing SNMP v1 and v2c Securing SNMP v3 SNMP Management Servers SNMP Security Checklist 9. Secure Routing and Antispoofing Antispoofing Routing Protocol Security Routing Protocol and Antispoofing Checklist 10. NTP NTP Overview Configuring NTP NTP Checklist 11. Logging Logging in General Router Logging ACL Violation Logging AAA Accounting Logging Checklist A. Checklist Quick Reference B. Physical Security C. Incident Response D. Configuration Examples E. Resources Index