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Cisco IOS Software Releases 12.0 Mainline

Introduction
NOTE: This product is no longer being sold and might not be supported. View the End-of-Life Notice to learn:
  • End-of-sale and end-of-life dates
  • What replacement products are available
  • Information about product support

 
Product Literature
Review additional information about Cisco IOS Software Releases 12.0 Mainline in Products & Services site area.
Bulletins
Data Sheets
End-of-Life and End-of-Sale Notices
White Papers
General Information

Master Index (3)

Release Notes (19)

Download Software

Reference Guides

Command References (14)

Design

Design TechNotes (21)

Install and Upgrade

Install and Upgrade Guides (1)

Install and Upgrade TechNotes (26)

Configure

Configuration Examples and TechNotes (11)

Configuration Guides (12)

Maintain and Operate

Maintain and Operate TechNotes (4)

Troubleshoot and Alerts

Error and System Messages (1)

Field Notices (1)

Security Advisories, Responses and Notices (31)

Troubleshooting Guides (1)

Troubleshooting TechNotes (88)