Cisco IOS Software Releases 12.4 Special and Early Deployments

Security Notices

Security Advisories, Responses and Notices

• Cisco IOS and IOS XE Software ISDN Q.931 Denial of Service Vulnerability 24-Sep-2020
• Cisco IOS and IOS XE Software Information Disclosure Vulnerability 24-Sep-2020
• Cisco IOS and IOS XE Software Split DNS Denial of Service Vulnerability 24-Sep-2020
• Cisco IOS and IOS XE Software Tcl Denial of Service Vulnerability 03-Jun-2020
• Cisco IOS and IOS XE Software Secure Shell 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 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 Internet Key Exchange Version 1 Denial of Service Vulnerability 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 Layer 2 Tunneling Protocol Denial of Service Vulnerability 22-Mar-2017

Release and Compatibility

Release Notes

• Release Notes for Cisco 3202 Series Mobile Access Routers with Cisco IOS Release 12.4(3)JK4 28-Oct-2013
• Release Notes for Cisco IOS Release 12.4(24)GC5 18-Nov-2012
• Release Notes for Cisco GGSN Release 10.x on the Cisco SAMI, Cisco IOS Release 12.4(24)YE 05-Mar-2012
• Release Notes for Cisco GGSN Release 8.0 on the Cisco SAMI, Cisco IOS Software Release 12.4(15)XQ 13-Feb-2012
• Release Notes for Cisco GGSN Release 9.x on the Cisco SAMI, Cisco IOS Release 12.4(22)YE 12-Feb-2012
• Release Notes for the Cisco Broadband Wireless Gateway 2.4 for Cisco IOS Release 12.4(24)YG4 24-Jan-2012
• Release Notes for Cisco IOS Release 12.4(24)GC4 29-Sep-2011
• Release Notes for Cisco PDSN Release 5.5 in IOS Release 12.4(22)XR12 28-Sep-2011
• Release Notes for the Cisco Mobile Wireless Home Agent Feature in Cisco IOS Release 12.4(22)YD4 27-Sep-2011
• Release Notes for Cisco GGSN Release 6.0 on the Cisco MWAM, Cisco IOS Software Release 12.4 XB 27-Sep-2011
• Release Notes for the Cisco PDSN 4.1 Feature in Cisco IOS Release 12.4(15)XR10 18-May-2011
• Release Notes for Cisco PDSN Release 5.5 in IOS Release 12.4(22)XR11 01-Apr-2011
• Release Notes for Cisco PDSN Release 5.5 in IOS Release 12.4(22)XR10 27-Dec-2010
• Release Notes for Cisco PDSN Release 5.5 in IOS Release 12.4(22)XR10 21-Dec-2010
• Release Notes for Cisco IOS Release 12.4(24)GC2 18-Nov-2010 (PDF - 245 KB)

Reference

Command References

• Cisco Broadband Wireless Gateway 1.1 Command Reference, IOS Release 12.4(15)XL2 18-Mar-2015
• Command Reference for the Cisco ASN Gateway Release 1.0 for Cisco IOS Release 12.4(15)XL 18-Mar-2015
• Command Reference for Cisco PDSN Release 5.5 in IOS Release 12.4(22)XR11 26-May-2011
• Cisco GGSN Release 10.2 Command Reference, Cisco IOS Release 12.4(24)YE4 15-May-2011
• Cisco GGSN Release 10.1 Command Reference, Cisco IOS Release 12.4(24)YE3 23-Feb-2011
• Cisco Mobile Wireless Home Agent Command Reference for Cisco IOS Release 12.4(22)YD3 17-Jan-2011
• Command Reference Guide Cisco Broadband Wireless Gateway 2.3 Command Reference, IOS Release 12.4(24)YG3 17-Jan-2011
• Cisco Broadband Wireless Gateway 2.2 Command Reference, IOS Release 12.4(24)YG2 17-Jan-2011
• Cisco GGSN Release 8.0 Command Reference, Cisco IOS Release 12.4(15)XQ 04-Jan-2011
• Command Reference for Cisco PDSN Release 5.1 in IOS Release 12.4(22)XR2 03-Jan-2011
• Cisco GGSN Release 9.2 Command Reference, Cisco IOS Release 12.4(22)YE3 02-Jan-2011
• Command Reference for Cisco PDSN Release 5.5 in IOS Release 12.4(22)XR9 20-Sep-2010
• Command Reference for Cisco PDSN Release 4.1 in IOS Release 12.4(15)XR9 06-Jul-2010
• Command Reference for Cisco PDSN Release 5.2 in IOS Release 12.4(22)XR4 04-Mar-2010
• Cisco GGSN Release 10.0 Command Reference, Cisco IOS Release 12.4(24)YE2 25-Feb-2010

Design

Design TechNotes

• 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

• 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
• Software Installation and Upgrade Procedures 29-Jan-2006
• ROMmon Recovery Procedure for the Cisco 1000 Series Router 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

Feature Guides

• Cisco GGSN Release 10.2 Configuration Guide, Cisco IOS Release 12.4(24)YE4 15-May-2011
• Cisco GGSN Release 10.1 Configuration Guide, Cisco IOS Release 12.4(24)YE3 23-Feb-2011
• Cisco Packet Data Serving Node Release 5.1 for Cisco IOS Release 12.4(22)XR2 04-Jan-2011
• Cisco GGSN Release 9.2 Configuration Guide, Cisco IOS Release 12.4(22)YE3 03-Jan-2011
• Cisco GGSN Release 8.0 Configuration Guide, Cisco IOS Release 12.4(15)XQ 03-Jan-2011
• Cisco Packet Data Serving Node Release 5.5 for Cisco IOS Release 12.4(22)XR9 20-Sep-2010
• Cisco Broadband Wireless Gateway Release 2.3 for Cisco IOS Release 12.4(24)YG3 13-Jul-2010
• Cisco Mobile Wireless Home Agent Release 5.3 for Cisco IOS Release 12.4(22)YD3 19-May-2010
• Cisco BWG Release 2.2 Feature Guide for Cisco IOS Release 12.4(24)YG2 07-Apr-2010
• Cisco Packet Data Serving Node Release 5.2 for Cisco IOS Release 12.4(22)XR4 04-Mar-2010
• Cisco GGSN Release 10.0 Configuration Guide, Cisco IOS Release 12.4(24)YE2 25-Feb-2010
• Cisco Mobile Wireless Home Agent Release 5.2 for Cisco IOS Release 12.4(22)YD2 10-Nov-2009
• Cisco Packet Data Serving Node Release 5.1 for Cisco IOS Release 12.4(22)XR1 06-Nov-2009
• Cisco Packet Data Serving Node (PDSN) Release 4.1 for Cisco IOS Release 12.4(15)XR7 04-Sep-2009
• Cisco Packet Data Serving Node (PDSN) Release 5.0 for Cisco IOS Release 12.4(22)XR 21-Aug-2009

Maintain and Operate

Maintain and Operate TechNotes

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

Troubleshooting

Troubleshooting TechNotes

• IOS Self-Signed Certificate Expiration on Jan. 1, 2020 25-Dec-2019
• 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