Cisco IOS Software Releases 12.2 SX

Data Sheets and Product Information

End-of-Life and End-of-Sale Notices

• English

  • End-of-Sale and End-of-Life Announcement for the Cisco Select IOS Software Versions for SR500 12-Nov-2019
  • End-of-Sale and End-of-Life Announcement for the Cisco IOS Software Release 15.4(1)SY 30-Nov-2017
  • End-of-Sale and End-of-Life Announcement for the Cisco IOS Software Release 15.3(1)SY for Cisco Catalyst 6500 Series Switches 31-Oct-2016
  • End-of-Sale and End-of-Life Announcement for the Cisco IOS Software Release 15.2(2)SY for Cisco Catalyst 6500 Series Switches 31-Oct-2016
  • End-of-Sale and End-of-Life Announcement for the Cisco IOS Software Release 15.2(1)SY for Cisco Catalyst 6500 Series Switches 31-Oct-2016
  • End-of-Sale and End-of-Life Announcement for the Cisco IOS Software Release 15.1(2)SY for the Cisco Catalyst 6500 Series Switches 09-Feb-2016
  • End-of-Sale and End-of-Life Announcement for the Cisco IOS Software Release 12.2(18)SXF for the Cisco Catalyst 6500 Series 13-Nov-2009
  • End-of-Sale and End-of-Life Announcement for the Cisco Catalyst 6500 IOS Software Release 15.0(1)SY 30-Apr-2014
  • End-of-Sale and End-of-Life Announcement for the Cisco Catalyst 6500 IOS Software Release 15.1(1)SY 30-Apr-2014

• French - Canadian

  • Annonce d’arrêt de commercialisation et de fin de vie de Cisco Select IOS Software Versions for SR500 12-Nov-2019
  • Annonce d’arrêt de commercialisation et de fin de vie de Cisco IOS Software Release 15.4(1)SY 30-Nov-2017
  • Annonce d’arrêt de commercialisation et de fin de vie de la version 15.2(2)SY du logiciel d’exploitation Cisco IOS des commutateurs Cisco Catalyst de série 6500 31-Oct-2016
  • Annonce d’arrêt de commercialisation et de fin de vie de la version 15.3(1)SY du logiciel d’exploitation Cisco IOS pour commutateurs Cisco Catalyst de série 6500 31-Oct-2016
  • Annonce d’arrêt de commercialisation et de fin de vie de la version 15.2(1)SY du logiciel d’exploitation Cisco IOS pour les commutateurs Cisco Catalyst de série 6500 31-Oct-2016
  • Annonce d’arrêt de commercialisation et de fin de vie de la version 15.1(2)SY du logiciel d’exploitation Cisco IOS pour les commutateurs Cisco Catalyst de série 6500 09-Feb-2016

Security Notices

Field Notices

• Cisco IOS Software Release 12.2(33)SXH4

  • Field Notice: FN - 63206 - Configuring crypto maps in Crypto Connect Mode on 12.2(33)SXH4 based release can cause a sustained increase in CPU utilization 23-Mar-2009

• Cisco IOS Software Release 12.2(14)SX

  • Field Notice: FN - 62809 - Cisco IOS - Select Outdated IOS Releases Removed from Cisco IOS Software Center on Cisco.com 14-Nov-2007

Security Advisories, Responses and Notices

• Cisco IOS and IOS XE Software Information Disclosure Vulnerability 24-Sep-2020
• Cisco IOS and IOS XE Software Tcl Denial of Service Vulnerability 03-Jun-2020
• Cisco IOS and IOS XE Software Tcl Arbitrary Code Execution Vulnerability 03-Jun-2020
• Cisco IOS and Cisco IOS XE Software Web UI Cross-Site Request Forgery Vulnerability 13-Apr-2020
• Cisco IOS and IOS XE Software IP Ident Denial of Service Vulnerability 25-Sep-2019
• Cisco IOS and IOS XE Software HTTP Client Information Disclosure Vulnerability 25-Sep-2019
• Cisco IOS and IOS XE Software Hot Standby Router Protocol Information Leak Vulnerability 27-Mar-2019
• Cisco IOS and IOS XE Software TACACS+ Client Denial of Service Vulnerability 26-Sep-2018
• Cisco IOS and IOS XE Software VLAN Trunking Protocol Denial of Service Vulnerability 26-Sep-2018
• Cisco IOS, IOS XE, and IOS XR Software Link Layer Discovery Protocol Buffer Overflow Vulnerabilities 28-Mar-2018
• Cisco IOS and IOS XE Software DHCP Remote Code Execution Vulnerability 27-Sep-2017
• Multiple Cisco Products OSPF LSA Manipulation Vulnerability 27-Jul-2017
• SNMP Remote Code Execution Vulnerabilities in Cisco IOS and IOS XE Software 29-Jun-2017
• Cisco IOS and IOS XE Software DHCP Client Denial of Service Vulnerability 22-Mar-2017
• Cisco IOS and IOS XE Software DNS Forwarder Denial of Service Vulnerability 28-Sep-2016

Release and Compatibility

Master Index

• Cisco IOS Software Release 12.2SX

  • Cisco IOS Master Command List, All Releases 03-Apr-2006

Reference

Command References

• Cisco IOS IP Routing: Protocol-Independent Command Reference 26-Aug-2020
• Cisco IOS Debug Command Reference - Commands M through R 17-Aug-2020
• Cisco IOS Security Command Reference: Commands A to C 28-Jul-2020
• Cisco IOS IP Addressing Services Command Reference 22-Jul-2020
• Cisco IOS First Hop Redundancy Protocols Command Reference 21-Jun-2020
• Cisco IOS SNMP Support Command Reference 11-Jun-2020
• Cisco IOS Scripting with TCL Command Reference 11-Jun-2020
• Cisco IOS IP SLAs Command Reference 10-Jun-2020
• Cisco IOS Basic System Management Command Reference 10-Jun-2020
• Cisco IOS IP Routing: EIGRP Command Reference 09-Jun-2020
• Cisco IOS IP Routing: BGP Command Reference 09-Jun-2020
• Cisco IOS VPDN Command Reference 09-Jun-2020
• Cisco IOS HTTP Services Command Reference 09-Jun-2020
• Cisco IOS IP Application Services Command Reference 26-Apr-2020
• Cisco IOS High Availability Command Reference 06-Mar-2020

Technical References

• Cisco IOS Software Release 12.2(18)SXE

  • Cisco Safe Harbor IOS Release 12.2(18)SXE2 for Financial Enterprise Customers 17-Aug-2005

Design

Design TechNotes

• Cisco IOS Software Release 12.2(14)SX

  • Maximum Number of Interfaces and Subinterfaces for Cisco IOS Routers: IDB Limits 24-May-2012
  • Guide to Cisco IOS Release Naming 31-Jul-2008
  • Dealing with mallocfail and High CPU Utilization Resulting From the "Code Red" Worm 20-Jun-2008
  • Cisco 12000 Series Internet Router Parity Error Fault Tree 29-Apr-2008
  • How to Protect Your Network Against the Nimda Virus 06-Mar-2008
  • Performance Tuning Basics 11-Jul-2007
  • Cisco Internetworking Operating Systems (IOS) 01-Dec-2006
  • Cisco Internetwork Operating System (Cisco IOS) 02-Feb-2006

Install and Upgrade

Install and Upgrade TechNotes

• Cisco IOS Software Release 12.2(14)SX

  • How to Choose a Cisco IOS Software Release 05-Feb-2021
  • Access Routers Software Upgrade Procedures 31-Jul-2015
  • How To Copy a System Image from One Device to Another 22-Sep-2014
  • Software Installation and Upgrade Procedure for the 1600, 2000, 2500, 3000, AS5100, and AS5200 24-Jun-2008
  • ROMmon Recovery for the Cisco 4500 and 4700 Series Routers 23-Jan-2008
  • How to Download a Software Image to a Cisco 2600 via TFTP Using the tftpdnld ROMMON Command 06-Dec-2006
  • Upgrading Line Card Firmware on a Cisco 12000 Series Internet Router 04-Dec-2006
  • TFTP Server Selection and Use 02-Feb-2006
  • Xmodem Console Download Procedure Using ROMmon 01-Feb-2006
  • Software Installation and Upgrade Procedure for the AS5350 and AS5400 31-Jan-2006
  • ROMmon Recovery Procedure for the 7000 (RP) Series 30-Jan-2006
  • ROMmon Recovery Procedure for the Cisco 1000 Series Router 29-Jan-2006
  • Software Installation and Upgrade Procedures 29-Jan-2006
  • Cisco IOS Software Upgrade Procedure for Cisco 801, 802, 803, 804, and 805 Series Routers 27-Jan-2006
  • How to Upgrade from ROMmon Using the Boot Image 27-Jan-2006

Configuration

Configuration Examples and TechNotes

• How to Choose a Cisco IOS Software Release 05-Feb-2021
• Telnet, Console and AUX Port Passwords on Cisco Routers Configuration Example 17-Dec-2019
• ROMmon Recovery for the Cisco 4500 and 4700 Series Routers 23-Jan-2008
• Telnet Password on Cisco Router to Avoid Error Message Configuration Example 03-Aug-2006
• Using Network-Based Application Recognition and ACLs for Blocking the "Code Red" Worm 02-Aug-2006
• TCP and UDP Small Servers 01-Aug-2006
• Configuring a Core Dump on a GSR Line Card 02-Feb-2006
• ROMmon Recovery Procedure for the 7000 (RP) Series 30-Jan-2006
• ROMmon Recovery Procedure for the Cisco 1000 Series Router 29-Jan-2006
• Asynchronous Transfer Mode (ATM)
• Broadband Cable
• Dial and Access
• DSL and Long-Reach Ethernet
• IBM Technologies
• IP

Configuration Guides

• Quality of Service Solutions Configuration Guide Library, Cisco IOS Release 12.2SX 19-Mar-2015
• Network Management Configuration Guide Library, Cisco IOS Release 12.2SX 19-Mar-2015
• Multiprotocol Label Switching Configuration Guide Library, Cisco IOS Release 12.2SX 19-Mar-2015
• IP Multicast Configuration Guide Library, Cisco IOS Release 12.2SX 19-Mar-2015
• IP Addressing Configuration Guide Library, Cisco IOS Release 12.2SX 19-Mar-2015
• Embedded Management Configuration Guide Library, Cisco IOS Release 12.2SX 19-Mar-2015
• Wide-Area Networking Configuration Guide Library, Cisco IOS Release 12.2SX 19-Mar-2015
• Securing User Services Configuration Guide Library, Cisco IOS Release 12.2SX 19-Mar-2015
• Secure Connectivity Configuration Guide Library, Cisco IOS Release 12.2SX 19-Mar-2015
• Securing the Data Plane Configuration Guide Library, Cisco IOS Release 12.2SX 19-Mar-2015
• Software Modularity Installation and Configuration Guide, Cisco IOS Release 15SY 11-Dec-2012
• Catalyst 6500 Release 12.2SX Software Configuration Guide 25-Apr-2012
• IP Routing: Protocol-Independent Configuration Guide, Cisco IOS Release 12.2SX 31-Jan-2012
• IP Routing: ODR Configuration Guide, Cisco IOS Release 12.2SX 31-Jan-2012
• IP Addressing: DHCP Configuration Guide, Cisco IOS Release 12.2SX 22-Dec-2011

Feature Guides

• New Features in 12.2(33)SXI4 14-Jun-2010
• New Features in Cisco IOS Release 12.2(33)SXH7 10-Mar-2010
• New Features in Cisco IOS Release 12.2(33)SXI3 03-Nov-2009
• New Features in Cisco IOS Release 12.2(33)SXH6 21-Oct-2009
• New Features in Cisco IOS Release 12.2(33)SXI2 16-Jul-2009
• New Features in Cisco IOS Release 12.2(33)SXI1 02-Apr-2009
• New Features in Cisco IOS Release 12.2(33)SXH4 25-Nov-2008
• New Features in Cisco IOS Release 12.2(33)SXI 11-Nov-2008
• New Features in Cisco IOS Release 12.2(33)SXH3 30-Jul-2008
• IOS Server Load Balancing Feature in IOS Release 12.2(18)SXF7 05-Dec-2007
• FHRP—Enhanced Object Tracking of IP SLAs 21-Aug-2007
• TCP MSS Adjust 21-Aug-2007
• HSRP MD5 Authentication 21-Aug-2007
• SSO—HSRP 21-Aug-2007
• Onboard Failure Logging 21-Aug-2007

Maintain and Operate

Maintain and Operate TechNotes

• Cisco IOS Software Release 12.2(14)SX

  • Upgrading Line Card Firmware on a Cisco 12000 Series Internet Router 04-Dec-2006
  • Back up and Restore Configuration Files 03-Aug-2006

Troubleshooting

Error and System Messages

• Cisco IOS Release 12.2SX System Message Guide 25-Aug-2007

Troubleshooting TechNotes

• Troubleshoot Router Crashes 18-Nov-2019
• Troubleshooting High CPU Utilization in IP Input Process 11-Feb-2019
• Troubleshooting Watchdog Timeouts 21-Jun-2016
• Buffer Tuning for all Cisco Routers 17-Jun-2016
• Troubleshooting Bus Error Crashes 16-Jun-2016
• Understand Software-forced Crashes 16-Jun-2016
• SegV Exceptions 31-May-2016
• Troubleshooting Spurious Accesses, Alignment Errors, and Spurious Interrupts 31-May-2016
• Troubleshooting Buffer Leaks 26-May-2016
• Processor Memory Parity Errors (PMPEs) 25-May-2016
• Less Common Types of System Crashes 12-May-2016
• Troubleshooting Input Queue Drops and Output Queue Drops 03-May-2016
• Troubleshooting High CPU Utilization on Cisco Routers 27-Apr-2016
• Access Routers Software Upgrade Procedures 31-Jul-2015
• ROMmon Recovery for the Cisco 2600 Series Router and the VG200 29-Sep-2014

Literature

Presentations

• Cisco IOS Software Release 12.2(33)SXH Introduction 22-Aug-2007 (PDF - 10 MB)