04-21-2015 09:25 AM - edited 07-05-2021 02:58 AM
hi Everybody
Some weeks ago i have been had some issues with some APs and in all case i ve seen the same next message error
DTLS_CLIENT_ERROR: ../capwap/base_capwap/dtls/base_capwap_dtls_connection_db.c:2214 Max retransmission count reached for Connection 0x86B4AE4!
I think that maybe the issue is on the WLC because i have some ap´s with the same message,
We have implemented WLC 5508 and AIR CAP 3600 and 3700 access points
The WLC version is 8.0.110.0
In advance , thanks for your help
04-21-2015 02:40 PM
Post the complete output to the following commands:
1. WLC: sh sysinfo;
2. WLC: sh time;
3. AP: sh version; and
4. AP: sh ip interface brief
04-21-2015 04:31 PM
Hola que tal Pwc_mexico,
Estos Ap's que comentas se registran en la controladora o solo te muestra el mensaje que comentas.
04-22-2015 05:28 PM
Generalmente no se registran, solo he visto pocos casos en los cuales acceso por consola a ellos si les cambio que busquen otro de nuestros WLC, a veces se registran a veces no
ya me ha pasado con varios AP´s , no se si valga la pena comentar que estos APs estan como flexconnect
De antemano gracias
Saludos
04-23-2015 10:30 AM
hola buen dia,
los puertos de tu switch que van hacia los ap's en modo Flexconnect como están configurados?
04-24-2015 10:30 AM
Generalmente existe una vlan en cada oficina para la wireless, el puerto esta configurado como modo acceso y esta en la vlan de wireless
un ejemplo
interface GigabitEthernet1/0/22
description *** AP ***
switchport access vlan 8
switchport mode access
No se si deba llevar algun otro tipo de configuracion.
Gracias
Saludos
04-27-2015 10:26 AM
ya realizaste la prueba forzando al ap que se regsitre a la controladora
04-27-2015 12:54 PM
Te refieres a forzarlo por CLI con el siguiente comando
capwap ap controller ip add x.x.x.x ?? , si es asi, si ya lo intente y aun asi no funciona, lo curioso es que el viernes revise el equipo, y ya se encuentra ligado al controller.
La falla es aleatoria, cuando sucede, pasa un buen tiempo sin ligarse, y de repente se firma al controller.
04-27-2015 01:38 PM
puedes compartir los siguientes loggs
- show msglog
- show traplog
05-19-2015 10:13 AM
(Cisco Controller) >show msglog
Message Log Severity Level ...................... CRITICAL
*apfMsConnTask_2: Feb 13 11:08:22.476: #APF-1-CONFLICT_IN_ASS_REQ: apf_80211.c:9042 Conflicting Supported Rates in Association Request from1c:99:4c:80:41:ed
(Cisco Controller) >show traplog
Number of Traps Since Last Reset ............ 7204382
Number of Traps Since Log Last Displayed .... 11
Client Traps Statistics
Client Association Traps .................... 0
Client Disassociation Traps ................. 260709
Client Authentication Traps ................. 1806660
Client Deauthentication Traps ............... 1596784
Client Association Fail Traps ............... 368221
Client Authnetication Fail Traps ............ 303141
Station Authnetication Fail Traps ........... 0
Client Excluded Traps ....................... 59547
Client Static IP Fail Traps ................. 0
Association Fail Traps ...................... 0
Associate Fail Traps ........................ 343785
Client Association Data Stats Traps ......... 0
Client Disassociation Data Stats Traps ...... 0
Client Association NAC Alert Traps .......... 0
Client Web Auth User Login Traps ............ 782
Client Web Auth User Logout Traps ........... 2
--More-- or (q)uit
Client Enhanced Traps Sent Since Reset ............. 0
Client Association Enhanced Traps .................. 0
Client Association Enhanced Traps Send Fail ........ 0
Client Deauthentication Enhanced Traps ............. 0
Client Deauthentication Enhanced Traps Send Fail ... 0
Client Authentication Enhanced Traps ............... 0
Client Authentication Enhanced Traps Send Fail ..... 0
Client Stats Enhanced Traps ........................ 0
Client Stats Enhanced Traps Send Fail .............. 0
AP Traps Statistics
AP Interface Up Traps ............. 7916
AP Interface Down Traps ........... 8182
AP Associated Traps ............... 2209
AP Disassociated Traps ............ 2330
Log System Time Trap
--- ------------------------ -------------------------------------------------
0 Tue May 19 12:17:23 2015 RADIUS server 10.30.11.235:1813 failed to respond
to request (ID 66) for client f4:37:b7:22:17:28 /
user 'mlawrence009'
1 Tue May 19 12:17:23 2015 Client Deauthenticated: MACAddress:a0:ed:cd:85:fc
--More-- or (q)uit
:fd Base Radio MAC:50:17:ff:b3:40:e0 Slot: 1 User
Name: jwhite005 Ip Address: 10.30.251.205 Reason:
Unknown ReasonCode: 23
2 Tue May 19 12:17:23 2015 Client Authenticated: MAC Address:5c:8d:4e:75:e4:
aa base Radio MAC:f4:cf:e2:c6:a8:70 Slot: 1 User
Name:jhe064 IP Addr:10.30.250.71 SSID:WitAr3bLe3T
s
3 Tue May 19 12:17:22 2015 Client Authenticated: MAC Address:e8:80:2e:ba:79:
ed base Radio MAC:f4:cf:e2:c9:3f:e0 Slot: 1 User
Name:bcordova001 IP Addr:10.30.250.136 SSID:WitAr
3bLe3Ts
Would you like to display more entries? (y/n)
04-27-2015 01:54 PM
WLC: sh sysinfo
show msglog
show traplog
04-29-2015 06:18 AM
hola, buen dia
Ayer tuve un problema similar como el que comentaste, de que no se registraban los ap que estaban en flexconnect, los ap's con los que tenia el problema eran modelo 1532
la solucion fue la siguiente: agrege la mac-addres de los ap en la controladora como si los fueras a colocar en mesh.
el puerto que va hacia el ap (FlexConnect) como trunk y la vlan nativa
y de esa manera se registraban los ap's sin nigun problema, una vez que estaban registrados los colocaba como FlexConnect en la Wlc.
Saludos.
04-23-2015 10:44 AM
hola buen dia,
los puertos de tu switch que van hacia los ap's en modo Flexconnect como están configurados?
04-23-2015 11:25 AM
l0
04-29-2015 02:49 AM
Symptom:
Seeing DTLS_CLIENT_ERROR: in ap console during regression run
Conditions:
seeing dtls client error messages flooded in the ap console
platform used: ct5500,ap1532
Mar 16 01:36:15.999: DTLS_CLIENT_ERROR: ../capwap/base_capwap/dtls/base_capwap_dtls_connection_db.c:2214 Max retransmission count reached for Connection 0x67E891E0!
*Mar 16 01:36:45.999: %DTLS-5-SEND_ALERT: Send FATAL : Close notify Alert to 50.50.44.10:5246
*Mar 16 01:36:46.000: %CAPWAP-5-DTLSREQSEND: DTLS connection request sent peer_ip: 50.50.44.10 peer_port: 5246
*Mar 16 01:37:15.999: DTLS_CLIENT_ERROR: ../capwap/base_capwap/dtls/base_capwap_dtls_connection_db.c:2214 Max retransmission count reached for Connection 0x655A1CA0!
*Mar 16 01:37:45.999: %DTLS-5-SEND_ALERT: Send FATAL : Close notify Alert to 50.50.44.10:5246
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