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Using CAR During DOS Attacks
Sometimes,a network receives a stream of Denial of Service (DoS)attack packets along with the regular network traffic. In such situations,youcan use a mechanism called "rate limiting" in order to allow the networkperformance to degrade,so that the network remains up. You can use...
www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_tech_note09186a00800fb50a.shtml
07 Mar 2008
Strategies to Protect Against Distributed Denial of Service (DDoS) Attacks
This white paper contains information to help you understand how DDoS attacks are orchestrated, recognize programs used to facilitate DDoS attacks, apply measures to prevent the attacks, gather forensic information if you suspect an attack, and learn more about host...
www.cisco.com/en/US/tech/tk59/technologies_white_paper09186a0080174a5b.shtml
22 Apr 2008
Understanding the Packet Counters in the show interface rate Command Output with Committed Access Rate (CAR) [QoS Policing]
Committed Access Rate (CAR) is a rate limiting feature that can be used to provide Classification and Policing services. CAR can be used to classify packets based on certain criteria, such as IP address and port values that use access-lists. The action for packets that...
www.cisco.com/en/US/tech/tk543/tk545/technologies_tech_note09186a008010dd6a.shtml
15 Feb 2008
Cisco IOS Release 12.0(32)SY
...troubleshooting.shtml •Using CAR During DOS Attacks: http://www...warp/public/63/car_rate_limit_icmp...on Cisco.com. Use these release notes with...
References: 5 TAC
www.cisco.com/en/US/docs/ios/12_0/12_0sy/release/notes/120SYrn.html
05 Apr 2013
Cross-Platform Release Notes for Cisco IOS Release 12.4T, Part 3: New Feature Descriptions and Important Notes [Cisco IOS Software Releases 12.4 T]
...Router Lose Its Configuration During Reboot? at: http...note09186a00800b4447.shtml •Using CAR During DOS Attacks at: http://www.cisco...
References: 5 TAC
www.cisco.com/en/US/docs/ios/12_4t/release/notes/124TNEWF.html
27 Feb 2009
How to Protect Your Network Against the Nimda Virus
...SYN Packets" section of Using CAR During DOS Attacks. Consider rate-limiting...the "Code Red" Worm Using CAR During DOS Attacks Cisco Security Advisories...
www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_tech_note09186a0080110d17.shtml
06 Mar 2008
Cross-Platform Release Notes for Cisco IOS Release 12.0S, Part 6: Caveats for 12.0(6)S through 12.0(23)S6 [Cisco IOS Software Releases 12.0 S]
...Conditions: This symptom occurs during an SSO switchover. Workaround...vulnerable to a Denial of Service (DoS) attack from a malformed OSPF packet...22)S. Workaround: Use the clear isis * privileged...allocation failure (MALLOCFAIL) during a session establishment. Conditions...home gateway (HGW) that is using Layer 2 Forwarding (L2F...vulnerable to a Denial of Service (DoS) attack from a malformed OSPF packet...
www.cisco.com/en/US/docs/ios/12_0s/release/ntes/120SCAV4.html
22 Mar 2013
Cross-Platform Release Notes for Cisco IOS Release 12.2SR: Caveats for 12.2(33)SRA through 12.2(33)SRA7 [Cisco IOS Software Releases 12.2 SR]
...troubleshooting.shtml •Using CAR During DOS Attacks: http://www...warp/public/63/car_rate_limit_icmp...on Cisco.com. Use these release notes...
www.cisco.com/en/US/docs/ios/12_2sr/release/notes/122SRcavs5.html
19 Mar 2013
Cross-Platform Release Notes for Cisco IOS Release 12.2SB: Caveats for 12.2(28)SB through 12.2(31)SB14
...troubleshooting.shtml •Using CAR During DOS Attacks: http://www...warp/public/63/car_rate_limit...online on Cisco.com. Use these release notes...
www.cisco.com/en/US/docs/ios/12_2sb/release/notes/122SB_cav3.html
15 Feb 2013
Cisco IOS 12.4(6)T
...Image to a Cisco 2600 via TFTP Using the tftpdnld ROMMON Command...Troubleshooting Buffer Leaks Using CAR During DOS Attacks Configuring a Core Dump on...
www.cisco.com/cisco/web/support/model/tsd_software_ios_version_1246t.html
19 Apr 2013