Cisco Router Documentation

This page includes links to relevant articles on this and other sites related to routers.

Serial Interface Configuration

• Back-to-Back T1 Interface Configuration
• Back-to-Back 56k Interface Configuration

General Configuration

• Security License Configuration
• Cisco IOS IPv6 Configuration Guide, Release 12.4T
• Cisco IOS Security Configuration Guide, Release 12.4 (Includes detailed information on AAA and RADIUS/TACACS+ authentication)

Password Recovery

• Cisco 1700 and 1800 Series Router Password Recovery Procedure
• Password Recovery Procedure for the Cisco 2600 and 2800 Series Routers

IOS Software Reloading

via TFTP

• Step by step instructions for replacing/upgrading IOS image on Cisco Routers over TFTP
• How to Download a Software Image to a Cisco 2600 via TFTP Using the tftpdnld ROMMON Command

via XMODEM

• Xmodem Console Download Procedure Using ROMmon for the Cisco 2600

Troubleshooting

• Troubleshooting Serial Lines on Cisco Routers