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- About jeetkulkarni
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Member since
05-06-2014
58
Posts
20
Helpful
2
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Created by
jeetkulkarni
in Wireless and Mobility
in Wireless and Mobility
12-04-2019
02:29 PM
12-04-2019
02:29 PM
Hi Team, This is happening with any wireless networks (Cisco/Ruckus or others). I have got some captures from Macbook at this stage which show that EAPOL Frame M1 to M4 is out sequence. M2, M1, M4, M3. Is this a normal (by design) for Apple Macbook to show like this? I have done with on multiple Macbooks running Catalina OSx. Please advise. Regards Jeet
... View more
Created by
jeetkulkarni
in Wireless Security and Network Management
in Wireless Security and Network Management
08-07-2018
07:12 PM
08-07-2018
07:12 PM
We have run into issues where only few clients cannot associate to our corporate SSID. Debug synopsis below
Aug 08 11:55:18.039
*apfMsConnTask_3
Client made new Association to AP/BSSID BSSID a0:23:9f:fa:d5:62 AP NZCHC5NET55
Aug 08 11:55:18.041
*apfMsConnTask_3
The WLC/AP has found from client association request Information Element that claims PMKID Caching support
Aug 08 11:55:18.042
*apfMsConnTask_3
Client is entering the 802.1x or PSK Authentication state
Aug 08 11:55:18.042
*apfMsConnTask_3
Client expiration timer code set for 65335 seconds. The reason: Client deleted due to session timeout (wlan with webauth)
Aug 08 11:55:18.042
*apfMsConnTask_3
WLC/AP is sending an Association Response to the client with status code 0 = Successful association
This is with Cisco 5508 controller running a non-broadcast SSID. The software version is 8.3.141.0 and AP is 3500 at a flex connect site. EAP timers are set to 3 seconds for association. Screenshot attached.
Any ideas what can be done? Approach TAC?
Thanks
Jeet
... View more
07-05-2018
02:46 PM
We have found that many campus switches have stopped logging since weeks. It is not fixed time line for each switch. We have 4507+E, 3650s in the environment. Below is the log from one of the switch. Logging stopped from 23 weeks. Any ideas? Do I have to involve TAC here?
Logging configuration as below.
nzairnet1#show run | i logging logging host 10.150.0.187 logging host 10.150.0.20 logging synchronous logging synchronous
Log shows as below
nzairnet1#show log Syslog logging: enabled (0 messages dropped, 12 messages rate-limited, 0 flushes, 0 overruns, xml disabled, filtering disabled)
No Active Message Discriminator.
No Inactive Message Discriminator.
Console logging: level debugging, 2451 messages logged, xml disabled, filtering disabled Monitor logging: level debugging, 0 messages logged, xml disabled, filtering disabled Buffer logging: level debugging, 3052 messages logged, xml disabled, filtering disabled Exception Logging: size (8192 bytes) Count and timestamp logging messages: disabled Persistent logging: disabled
No active filter modules.
Trap logging: level informational, 3049 message lines logged Logging to 10.150.0.187 (udp port 514, audit disabled, link up), 632 message lines logged, 0 message lines rate-limited, 0 message lines dropped-by-MD, xml disabled, sequence number disabled filtering disabled Logging Source-Interface: VRF Name:
Log Buffer (32768 bytes): .150.4.48 4/0 (hold time expired) 0 bytes 002707: 22w1d: %BGP-5-NBR_RESET: Neighbor 10.150.4.48 reset (BGP Notification sent) 002708: 22w1d: %BGP-5-ADJCHANGE: neighbor 10.150.4.48 Down BGP Notification sent 002709: 22w1d: %BGP_SESSION-5-ADJCHANGE: neighbor 10.150.4.48 IPv4 Unicast topology base removed from session BGP Notification sent 002710: 22w1d: %SYS-5-CONFIG_I: Configured from console by kpmg on vty0 (10.150.174.141) 002711: 22w1d: %BGP-5-ADJCHANGE: neighbor 10.150.4.48 Up 002712: 22w1d: %C4K_REDUNDANCY-5-CONFIGSYNC: The private-config has been successfully synchronized to the standby supervisor 002713: 22w1d: %C4K_REDUNDANCY-5-CONFIGSYNC: The startup-config has been successfully synchronized to the standby supervisor 002714: 22w6d: %BGP-3-NOTIFICATION: sent to neighbor 192.168.140.7 4/0 (hold time expired) 0 bytes 002715: 22w6d: %BGP-5-NBR_RESET: Neighbor 192.168.140.7 reset (BGP Notification sent) 002716: 22w6d: %BGP-5-ADJCHANGE: neighbor 192.168.140.7 Down BGP Notification sent 002717: 22w6d: %BGP_SESSION-5-ADJCHANGE: neighbor 192.168.140.7 IPv4 Unicast topology base removed from session BGP Notification sent 002718: 22w6d: %HSRP-5-STATECHANGE: Vlan232 Grp 232 state Standby -> Active 002719: 22w6d: %HSRP-5-STATECHANGE: Vlan232 Grp 232 state Active -> Speak 002720: 22w6d: %HSRP-5-STATECHANGE: Vlan232 Grp 232 state Speak -> Standby 002721: 22w6d: %BGP-5-ADJCHANGE: neighbor 192.168.140.7 Up 002722: 22w6d: %HSRP-5-STATECHANGE: Vlan10 Grp 10 state Speak -> Standby 002723: 22w6d: %HSRP-5-STATECHANGE: Vlan10 Grp 10 state Standby -> Listen 002724: 22w6d: %HSRP-5-STATECHANGE: Vlan10 Grp 10 state Speak -> Standby 002725: 22w6d: %HSRP-5-STATECHANGE: Vlan10 Grp 10 state Standby -> Listen 002726: 22w6d: %HSRP-5-STATECHANGE: Vlan203 Grp 203 state Standby -> Active 002727: 22w6d: %HSRP-5-STATECHANGE: Vlan203 Grp 203 state Active -> Speak 002728: 22w6d: %HSRP-5-STATECHANGE: Vlan203 Grp 203 state Speak -> Standby 002729: 23w0d: %HSRP-5-STATECHANGE: Vlan232 Grp 232 state Standby -> Active 002730: 23w0d: %HSRP-5-STATECHANGE: Vlan232 Grp 232 state Active -> Speak 002731: 23w0d: %HSRP-5-STATECHANGE: Vlan232 Grp 232 state Speak -> Standby 002732: 23w0d: %SYS-5-CONFIG_I: Configured from console by kpmg on vty0 (10.150.0.206) 002733: 23w0d: %SYS-5-CONFIG_I: Configured from console by kpmg on vty0 (10.150.0.206) 002734: 23w0d: %C4K_REDUNDANCY-5-CONFIGSYNC: The private-config has been successfully synchronized to the standby supervisor 002735: 23w0d: %C4K_REDUNDANCY-5-CONFIGSYNC: The startup-config has been successfully synchronized to the standby supervisor 002736: 23w0d: %SYS-5-CONFIG_I: Configured from console by kpmg on vty0 (10.150.0.200) 002737: 23w0d: %SYS-5-CONFIG_I: Configured from console by kpmg on vty0 (10.150.0.200) 002738: 23w0d: %SYS-5-CONFIG_I: Configured from console by kpmg on vty0 (10.150.0.200) 002739: 23w0d: %SYS-5-CONFIG_I: Configured from console by kpmg on vty0 (10.150.0.200) 002740: 23w0d: %C4K_REDUNDANCY-5-CONFIGSYNC: The private-config has been successfully synchronized to the standby supervisor 002741: 23w0d: %C4K_REDUNDANCY-5-CONFIGSYNC: The startup-config has been successfully synchronized to the standby supervisor 002742: 23w0d: %SYS-5-CONFIG_I: Configured from console by kpmg on vty0 (10.150.0.200) 002743: 23w0d: %C4K_REDUNDANCY-5-CONFIGSYNC: The private-config has been successfully synchronized to the standby supervisor 002744: 23w0d: %C4K_REDUNDANCY-5-CONFIGSYNC: The startup-config has been successfully synchronized to the standby supervisor 002745: 23w1d: %SSH-4-SSH2_UNEXPECTED_MSG: Unexpected message type has arrived. Terminating the connection from 10.150.0.200 002746: 23w1d: %HSRP-5-STATECHANGE: Vlan100 Grp 100 state Standby -> Active 002747: 23w1d: %HSRP-5-STATECHANGE: Vlan100 Grp 100 state Active -> Speak 002748: 23w1d: %HSRP-5-STATECHANGE: Vlan100 Grp 100 state Speak -> Standby 002749: 23w2d: %HSRP-5-STATECHANGE: Vlan202 Grp 202 state Standby -> Active 002750: 23w2d: %HSRP-5-STATECHANGE: Vlan202 Grp 202 state Active -> Speak 002751: 23w2d: %HSRP-5-STATECHANGE: Vlan202 Grp 202 state Speak -> Standby 002752: 23w3d: %HSRP-5-STATECHANGE: Vlan203 Grp 203 state Standby -> Active 002753: 23w3d: %HSRP-5-STATECHANGE: Vlan203 Grp 203 state Active -> Speak 002754: 23w3d: %HSRP-5-STATECHANGE: Vlan203 Grp 203 state Speak -> Standby 002755: 23w3d: %HSRP-5-STATECHANGE: Vlan201 Grp 201 state Standby -> Active
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Labels:
03-19-2018
01:33 PM
Currently have 3650s in our environment.
What is the basic difference in the configuration of below interfaces
Interface 1-
interface g1/1
switchport mode access
switchport access vlan 20
Interface 2-
interface g1/2
switchport mode trunk
switchport trunk allowed vlan 20
If only vlan 20 is allowed via trunk or access are the packet tagged differently? Please clarify.
Thanks
Jeet
... View more
Labels:
03-19-2018
01:02 PM
They are referring vlan access lists. Agree with Deepak as all other VLANs should have access to the new VLAN. You have to make sure that the trunk/uplink ports between the switches have VLANs allowed so that communication is established without any hassle. Please rate useful posts. HTH
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Created by
jeetkulkarni
in Wireless and Mobility
in Wireless and Mobility
03-19-2018
12:58 PM
03-19-2018
12:58 PM
Hi,
Switch ports where AP is connected has correct configuration to that of the working APs? Is the power enough for the APs? These APs need 26W power. Confirm by doing - "show power inline". Have you tried to console connect one of the APs to check the log messages confirm?
Have the APs been added to the controller?
Let me know how you go.
Please rate useful posts.
Jeet
... View more
03-19-2018
12:22 PM
Under CONTROLLER > INTERFACES> "relevant interface for the ssid"> have you specified the DHCP servers? Are they pointing to the correct ones. Does the Wireless LAN controller have direct access to the DHCP server?
Please rate useful posts.
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Created by
jeetkulkarni
in Wireless Security and Network Management
in Wireless Security and Network Management
02-25-2018
02:47 PM
02-25-2018
02:47 PM
The behavior is still seen, we now have a TAC case open!
... View more
Created by
jeetkulkarni
in Wireless Security and Network Management
in Wireless Security and Network Management
02-20-2018
01:32 PM
02-20-2018
01:32 PM
I've updated WLC to version 8.3.151.0 for now, clients seem to be connecting OK but still too early to confirm.
... View more
Created by
jeetkulkarni
in Wireless and Mobility
in Wireless and Mobility
02-20-2018
11:50 AM
02-20-2018
11:50 AM
I have updated WLC to 8.3.151.0 yesterday. I read in the release notes resolved caveats that this has been taken cared. Hope this is fine?
... View more
Created by
jeetkulkarni
in Wireless Security and Network Management
in Wireless Security and Network Management
02-19-2018
06:49 PM
02-19-2018
06:49 PM
Sure, we have similar issues wherein the client does not join the network. In some instances it just looses network connectivity in the middle of no where. Does it sound familiar?
... View more
Created by
jeetkulkarni
in Wireless Security and Network Management
in Wireless Security and Network Management
02-19-2018
06:33 PM
02-19-2018
06:33 PM
When you added the client to mac filter did the drops stop/decrease?
... View more
Created by
jeetkulkarni
in Wireless Security and Network Management
in Wireless Security and Network Management
02-19-2018
04:51 PM
02-19-2018
04:51 PM
Kindly let me know what are the implications to the Cisco WLC detecting rogue client and putting a "Threat" label against it? Does it block the client from accessing the networks or simply puts a label and let the client access if it can. This is related to the bug identified here - https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvf31881
We currently have valid Lenovo X1 laptops showing in Rogue clients in threat list. Most of the clients have network drops and intermittent wireless connection issues.
... View more
Created by
jeetkulkarni
in Wireless and Mobility
in Wireless and Mobility
02-19-2018
04:34 PM
02-19-2018
04:34 PM
Might have found clue to this - https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvf31881
... View more
Created by
jeetkulkarni
in Wireless and Mobility
in Wireless and Mobility
02-19-2018
02:33 PM
02-19-2018
02:33 PM
Current environment
APs - 2800i
Cisco 5508 running 8.2.166.0 version
Issues with Lenovo X1 laptops with Intel 8260/8265 wireless NIC. Clients randomly drop SSID and report loss of network connectivity. Takes few minutes to connect to the SSIDs. Wireless drivers also up to date as per Intel's website - 20.30.1.2
I have checked APs, WLC configuration nothing unusually seen. Clients running on RF policy for 802.11a with screenshots attached.
Have anyone of you come across similar issues? We have also tried moving the NPS from Windows Server 2008 to 2012R2.
Any inputs will be highly appreciated. Scott Fella/Rasika/Wireless Gurus :)
Thanks,
Jeet
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Labels:
12-04-2019
Hi Team,This is happening with any wireless networks (Cisco/Ruckus or
others). I have got some captu...
Created by
jeetkulkarni
in Wireless Security and Network Management
08-07-2018
08-07-2018
We have run into issues where only few clients cannot associate to our
corporate SSID. Debug synopsi...
07-05-2018
We have found that many campus switches have stopped logging since
weeks. It is not fixed time line ...
03-19-2018
Currently have 3650s in our environment. What is the basic difference in
the configuration of below ...
03-19-2018
They are referring vlan access lists. Agree with Deepak as all other
VLANs should have access to the...
Created by
jeetkulkarni
in Wireless and Mobility
03-19-2018
03-19-2018
Hi, Switch ports where AP is connected has correct configuration to that
of the working APs? Is the ...
03-19-2018
Under CONTROLLER > INTERFACES> "relevant interface for the ssid"> have
you specified the DHCP server...
Created by
jeetkulkarni
in Wireless Security and Network Management
02-25-2018
02-25-2018
The behavior is still seen, we now have a TAC case open!
Created by
jeetkulkarni
in Wireless Security and Network Management
02-20-2018
02-20-2018
I've updated WLC to version 8.3.151.0 for now, clients seem to be
connecting OK but still too early ...
02-20-2018
I have updated WLC to 8.3.151.0 yesterday. I read in the release notes
resolved caveats that this ha...
Created by
jeetkulkarni
in Wireless Security and Network Management
02-19-2018
02-19-2018
Sure, we have similar issues wherein the client does not join the
network. In some instances it just...
Created by
jeetkulkarni
in Wireless Security and Network Management
02-19-2018
02-19-2018
When you added the client to mac filter did the drops stop/decrease?
Created by
jeetkulkarni
in Wireless Security and Network Management
02-19-2018
02-19-2018
Kindly let me know what are the implications to the Cisco WLC detecting
rogue client and putting a "...
Public Statistics
| Date Registered | 05-06-2014 04:39 PM |
| Date Last Visited | 12-12-2019 02:36 PM |
| Total Messages Posted | 58 |
| Total Helpful Votes Received | 20 |
Helpful Votes Given To
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|---|---|
| 5 | |
| 10 | |
| 13 | |
| 5 | |
| 5 |
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