Cisco IOS Software Configuration Guide for Cisco Aironet Access ...

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802.11 Subsystem Messages Appendix C Error and Event Messages Error Message DOT11-3-RF-LOOPBACK_FREQ_FAILURE: “Interface %s failed to pass RF loopback test.” Explanation Radio loopback test failed at a given frequency for the indicated interface. Recommended Action None. Error Message DOT11-7-AUTH_FAILED: “Station %e Authentication failed,” MSDEF_LIMIT_MEDIUM Explanation The indicated station failed authentication. Recommended Action Verify that the user entered the correct username and password, and verify that the authentication server is online. Error Message DOT11-4-CCMP_REPLAY: “AES-CCMP TSC replay was detected on packet (TSC 0x%11x received from &e).” Explanation AES-CCMP TSC replay was indicated on a frame. A replay of the AES-CCMP TSC in a received packet almost indicates an active attack. Recommended Action None. Error Message DOT11-7-CCKM_AUTH_FAILED: “Station %e CCKM authentication failed.” Explanation The indicated station failed CCKM authentication. Recommended Action point is functional. Verify that the topology of the access points configured to use the WDS access Error Message DOT11-4-CKIP_MIC_FAILURE: “CKIP MIC failure was detected on a packet (Digest 0x%x) received from %e).” Explanation CKIP MIC failure was detected on a frame. A failure of the CKIP MIC in a received packet almost indicates an active attack. Recommended Action None. Error Message DOT11-4-CKIP_REPLAY: “CKIP SEQ replay was detected on a packet (SEQ 0x&x) received from %e.” Explanation CKIP SEQ replay was detected on a frame. A replay of the CKIP SEQ in a received packet almost indicates an active attack.” Recommended Action None. C-14 Cisco IOS Software Configuration Guide for Cisco Aironet Access Points OL-8191-01
Appendix C Error and Event Messages 802.11 Subsystem Messages Error Message DOT11-4-TKIP_MIC_FAILURE: “Received TKIP Michael MIC failure report from the station %e on the packet (TSC=0x%11x) encrypted and protected by %s key.” Explanation TKIP Michael MIC failure was detected from the indicated station on a unicast frame decrypted locally with the indicated pairwise key. Recommended Action A failure of the Michael MIC in a packet usually indicates an active attack on your network. Search for and remove potential rogue devices from your wireless LAN. Error Message DOT11-4-TKIP_MIC_FAILURE_REPORT: “Received TKIP Michael MIC failure report from the station %e on the packet (TSC=0x0) encrypted and protected by %s key Explanation The access point received an EAPOL-key from the indicated station notifying the access point that TKIP Michael MIC failed on a packet transmitted by this access point. Recommended Action None. Error Message DOT11-3-TKIP_MIC_FAILURE_REPEATED: “Two TKIP Michael MIC failures were detected within %s seconds on %s interface. The interface will be put on MIC failure hold state for next %d seconds” Explanation Two TKIP Michael MIC failures were detected within the indicated time on the indicated interface. Because this usually indicates an active attack on your network, the interface will be put on hold for the indicated time. During this hold time, stations using TKIP ciphers are disassociated and cannot reassociate until the hold time ends. At the end of the hold time, the interface operates normally. Recommended Action MIC failures usually indicate an active attack on your network. Search for and remove potential rogue devices from your wireless LAN. If this is a false alarm and the interface should not be on hold this long, use the countermeasure tkip hold-time command to adjust the hold time. Error Message DOT11-4-TKIP_REPLAY: “TKIP TSC replay was detected on a packet (TSC 0x%ssx received from %e).” Explanation TKIP TSC replay was detected on a frame. A replay of the TKIP TSC in a received packet almost indicates an active attack. Recommended Action None. Error Message DOT11-4-WLAN_RESOURCE_LIMIT: “WLAN limit exceeded on interface %s and network-id %d.” Explanation This access point has reached its limit of 16 VLANs or WLANs. Recommended Action Unconfigure or reduce static VLANS if access point is trying to associate with RADIUS assigned Network-ID turned on. OL-8191-01 Cisco IOS Software Configuration Guide for Cisco Aironet Access Points C-15
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Cisco IOS Software Configuration Gu
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CONTENTS Preface xix Audience xix P
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Contents Opening the CLI with Secur
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Contents Optional ARP Caching 5-26
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Contents Guidelines for Using Multi
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Contents Applying an EAP Profile to
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Contents Assigning Names to VLANs 1
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Contents Verifying Repeater Operati
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Contents Displaying the Logging Con
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Preface Audience This guide is for
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Preface Conventions Appendix B, “
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Preface Related Publications ¡Adve
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Preface Documentation Feedback Cisc
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Preface Obtaining Technical Assista
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CHAPTER 1 Overview Cisco Aironet Ac
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Chapter 1 Overview Features WLSM Su
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Chapter 1 Overview Features VoWLAN
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Chapter 1 Overview Features • Wi-
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Chapter 1 Overview Management Optio
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Chapter 1 Overview Network Configur
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Chapter 1 Overview Network Configur
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CHAPTER 2 Using the Web-Browser Int
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Chapter 2 Using the Web-Browser Int
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CHAPTER 3 Using the Command-Line In
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Chapter 3 Using the Command-Line In
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CHAPTER 4 Configuring the Access Po
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Chapter 4 Configuring the Access Po
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CHAPTER 5 Administering the Access
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Chapter 5 Administering the Access
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CHAPTER 6 Configuring Radio Setting
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Chapter 6 Configuring Radio Setting
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CHAPTER 7 Configuring Multiple SSID
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Chapter 7 Configuring Multiple SSID
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CHAPTER 8 Configuring Spanning Tree
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Chapter 8 Configuring Spanning Tree
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CHAPTER 9 Configuring an Access Poi
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Chapter 9 Configuring an Access Poi
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CHAPTER 10 Configuring Cipher Suite
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Chapter 10 Configuring Cipher Suite
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CHAPTER 11 Configuring Authenticati
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Chapter 11 Configuring Authenticati
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CHAPTER 12 Configuring WDS, Fast Se
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Chapter 12 Configuring WDS, Fast Se
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CHAPTER 13 Configuring RADIUS and T
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Chapter 13 Configuring RADIUS and T
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CHAPTER 14 Configuring VLANs This c
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Chapter 14 Configuring VLANs Unders
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Chapter 14 Configuring VLANs Config
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Chapter 14 Configuring VLANs VLAN C
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Chapter 14 Configuring VLANs VLAN C
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CHAPTER 15 Configuring QoS This cha
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Chapter 15 Configuring QoS Understa
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Chapter 15 Configuring QoS Configur
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Chapter 15 Configuring QoS QoS Conf
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CHAPTER 16 Configuring Filters This
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Chapter 16 Configuring Filters Conf
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CHAPTER 17 Configuring CDP This cha
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Chapter 17 Configuring CDP Configur
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Chapter 17 Configuring CDP Monitori
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Chapter 17 Configuring CDP Monitori
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CHAPTER 18 Configuring SNMP This ch
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Chapter 18 Configuring SNMP Underst
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Chapter 18 Configuring SNMP Configu
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CHAPTER 19 Configuring Repeater and
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Chapter 19 Configuring Repeater and
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SP ED LED 1 5 2 6 3 7 4 8 1X 2X ETH
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20 CHAPTER Managing Firmware and Co
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Chapter 20 Managing Firmware and Co
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21 CHAPTER Configuring System Messa
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Chapter 21 Configuring System Messa
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Chapter 21 Configuring System Messa
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Page 425 and 426: 22 CHAPTER Troubleshooting This cha
Page 427 and 428: Chapter 22 Troubleshooting Checking
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Page 443 and 444: Chapter 22 Troubleshooting Reloadin
Page 449 and 450: APPENDIX A Protocol Filters The tab
Page 451 and 452: Appendix A Protocol Filters Table A
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Page 455 and 456: APPENDIX B Supported MIBs This appe
Page 457 and 458: APPENDIX C Error and Event Messages
Page 459 and 460: Appendix C Error and Event Messages
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Page 479 and 480: GLOSSARY 802.11 The IEEE standard t
Page 481 and 482: Glossary dipole domain name DNS DSS
Page 483 and 484: Glossary roaming RP-TNC A feature o
Page 485 and 486: INDEX Numerics 1130AG series indica
Page 487 and 488: Index Telnet 4-9 terminal emulator
Page 489 and 490: Index reasons for 20-18 using FTP 2
Page 491 and 492: Index IP redirection 7-11, 7-12 IPS
Page 493 and 494: Index protected ports 6-25 protocol
Page 495 and 496: Index server groups 18-7 shutdown m
Page 497 and 498: Index tftp_init command 22-21 TFTP
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