I want to synchronise a WLC2006 with a NTP server. After having set the NTP server IP address with the GUI, the ping operates properly, but the WLC keeps the date and time set manually. The NTP server is connected to the port supporting the dynamic interface carrying the data traffic (that means it is not connected to the port supporting the management and AP interfaces).
The NTP server looks operating properly: a MAR3200 and 2 AP1242 on the other side of the radio link are synchronised with this NTP server. The WLC is running the 18.104.22.168 release.
Do I miss a parameter configuration? Any link is welcome.
This is a common problem with WLCs, although one we normally see with RADIUS, not NTP...
Anyway, there is a design requirement whereby any services the WLC needs to contact (RADIUS, SNMP Server, NTP Server, Syslog, etc...) should be connected in such a way that either (a) they are in the same VLAN as the WLC Management Interface, or (b) they are in a VLAN not directly connected to the WLC.
Basically if your NTP server is on a Dynamic Interface, it confuses the hell out of the WLC, which subsequently forwards the traffic out of the wrong interface, and you never see it again, hence your lack of synchronisation. By restricting the location of the NTP to either the Management Subnet, or a VLAN not connected to the WLC (so it will exit via the Mgmt Interface as normal), you avoid this problem, and everything will work as required.
"It is strongly recommended to set WLC for UTC (no offset).
Then configure (off set) from the WLC GUI. This is done via: Commands -> Set Time -> Timezone: set both hours and minutes to 0.
If the WLC is located in a region that does not use DST, such as Arizona, you may set the timezone offset on the WLC, and it will handle the timezone offset correctly.
If the WLC is located in a region that uses DST, during standard time, run with the standard offset, then at the time when daylight rules take effect, manually tell the WLC to set the offset forward. When standard time resumes, manually tell the WLC to set the offset back.
It is strongly recommended, in any case, to configure the WLC to get its time from an NTP server. Note that the NTP does not communicate any timezone offset and/or DST change information. It uses only UTC."
Transferring Crash file from standby:
Login to the Active WLC in HA.
(Cisco Controller) >transfer upload datatype crash
(Cisco Controller) >transfer upload filename <Desired filename>
(Cisco Controller) >transfer up...
This is the start of a display filter cross reference between Wireshark and OmniPeek.
The 1st installment is a table of advanced filters. More filters will be added as time allows.
It is a living doc, so check back for changes every so often
Please feel ...
I have created a Powershell script to automatically add a Wireless Guest User on Cisco WLCs. (tested on 2500 Series)
The script should be completely self explanatory.
Powershell SNMP Module (Install-Module -Name SNMP)
SNMP Write Access to...