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 18-Jan-2023
  • 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

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  • Field Notice: FN - 62809 - Cisco IOS - Select Outdated IOS Releases Removed from Cisco IOS Software Center on Cisco.com 14-Nov-2007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 Resource Reservation Protocol Denial of Service Vulnerability 25-Sep-2024
• Multiple Cisco Operating Systems Unidirectional Link Detection Denial of Service Vulnerability 22-Sep-2021
• Cisco IOS and IOS XE Software Link Layer Discovery Protocol Denial of Service Vulnerability 22-Sep-2021
• 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

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 Security Command Reference: Commands S to Z 28-Aug-2024
• Cisco IOS Interface and Hardware Component Command Reference 05-Oct-2023
• Cisco IOS Security Command Reference: Commands A to C 11-Jan-2021
• Cisco IOS First Hop Redundancy Protocols Command Reference 21-Jun-2020
• Cisco IOS Scripting with TCL Command Reference 11-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
• Cisco IOS Security Command Reference: Commands D to L 17-Dec-2019
• Cisco IOS VPDN Command Reference 16-Dec-2019
• Cisco IOS IP Routing: EIGRP Command Reference 15-Dec-2019
• Cisco IOS Basic System Management Command Reference 13-Dec-2019
• Cisco IOS IP Routing: BGP Command Reference 21-Nov-2019
• Cisco IOS Debug Command Reference - Commands I through L 12-Nov-2019
• Cisco IOS Server Load Balancing Command Reference 23-Apr-2018

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

Configuration

Configuration Examples and TechNotes

• Cisco IOS Software Release 12.2(14)SX

  • Configure Telnet Password on a Router to Avoid Error Message 03-Aug-2006
  • Use NBAR and ACLs to Block the "Code Red" Worm 02-Aug-2006

Configuration Guides

• 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
• 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
• 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

Troubleshooting

Error and System Messages

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

Troubleshooting TechNotes

• 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
• ROMmon Recovery for the Cisco 2600 Series Router and the VG200 29-Sep-2014
• Maximum Number of Interfaces and Subinterfaces for Cisco IOS Routers: IDB Limits 24-May-2012
• High CPU Utilization in Exec and Virtual Exec Processes 12-Dec-2008
• Troubleshooting High CPU Utilization due to Processes 29-Sep-2008
• Guide to Cisco IOS Release Naming 31-Jul-2008
• Capturing Text Output from Hyperterminal 25-Jun-2008