01-08-2013 06:01 AM - edited 07-03-2021 11:18 PM
Hi,
I have a Cisco Wlan Controller 2504 with 1042N AP (3-nos) every thing was working fine from past 2 months. Now i am getting a issue with clients which are connected to the wireless AP, they are not able to get an dhcp IP address from the 2960 Switch (DHCP Server). The clients are getting IP address as 0.0.0.0.
This is My Configuration:
System Information
Manufacturer's Name.............................. Cisco Systems Inc.
Product Name..................................... Cisco Controller
Product Version.................................. 7.0.220.0
Bootloader Version............................... 1.0.16
Field Recovery Image Version..................... 1.0.0
Firmware Version................................. PIC 16.0
Build Type....................................... DATA + WPS
System Name...................................... WLAN
System Location..................................
System Contact...................................
System ObjectID.................................. 1.3.6.1.4.1.9.1.1279
IP Address....................................... 192.168.0.7
Last Reset....................................... Power on reset
System Up Time................................... 0 days 2 hrs 23 mins 22 secs
System Timezone Location.........................
Current Boot License Level....................... base
Current Boot License Type........................ Permanent
Next Boot License Level.......................... base
Switch Configuration
802.3x Flow Control Mode......................... Disable
FIPS prerequisite features....................... Disabled
secret obfuscation............................... Enabled
Strong Password Check Features:
case-check ...........Enabled
consecutive-check ....Enabled
default-check .......Enabled
username-check ......Enabled
Press Enter to continue or <ctrl-z> to abort
Network Information
RF-Network Name............................. MEC
Web Mode.................................... Disable
Secure Web Mode............................. Enable
Secure Web Mode Cipher-Option High.......... Disable
Secure Web Mode Cipher-Option SSLv2......... Enable
OCSP........................................ Disabled
OCSP responder URL..........................
Secure Shell (ssh).......................... Enable
Telnet...................................... Disable
Ethernet Multicast Forwarding............... Disable
Ethernet Broadcast Forwarding............... Disable
AP Multicast/Broadcast Mode................. Multicast Address : 0.0.0.0
IGMP snooping............................... Disabled
IGMP timeout................................ 60 seconds
IGMP Query Interval......................... 20 seconds
User Idle Timeout........................... 300 seconds
ARP Idle Timeout............................ 300 seconds
Cisco AP Default Master..................... Disable
AP Join Priority............................ Disable
Mgmt Via Wireless Interface................. Disable
Mgmt Via Dynamic Interface.................. Disable
Please Help !!!
Solved! Go to Solution.
01-09-2013 09:12 PM
Hi,
Use only Key Index 1.
Try creating an new SSID or may be make this SSID itself for testing with open authetication (Security None) and verify if the DHCP works.
Regards
Najaf
01-08-2013 07:31 AM
Ok, so:
1.) is the scope exhausted on the 2960?
2.) what has changed recently?
3.) is dhcp proxy enabled or disabled?
HTH,
Steve
------------------------------------------------------------------------------------------------
Please remember to rate useful posts, and mark questions as answered
01-08-2013 08:23 AM
1.) is the scope exhausted on the 2960?
-No Its working fine, the pc's which are connected to the switch they are able to get DHCP IP.
2.) what has changed recently?
-Nothing has changed.
3.) is dhcp proxy enabled or disabled?
-i checked it in the WLAN its enabled in it (If u are asking to check in WLAN)
Please still dind got any thing to get it working...
01-08-2013 08:42 AM
Proxy would either be Controller > Advanced or show dhcp proxy.
So you have only the one WLAN/interface?
HTH,
Steve
------------------------------------------------------------------------------------------------
Please remember to rate useful posts, and mark questions as answered
09-26-2016 10:38 PM
:)
01-08-2013 08:35 AM
You try to delete the DHCP scope and add it back? The switch might be the issue. I have seen it before.
Sent from Cisco Technical Support iPhone App
01-08-2013 08:44 AM
ok i will try by doing that... !
01-08-2013 08:22 PM
Tried deleting the DHCP scope on the switch and checked out still the issue is same..
01-08-2013 09:33 PM
Hi Amanulla,
Hope your WLC is configured as Trunk Interface, Please ensure that DHCP VLAN is allowed on the Trunk Links to the WLC and on all the path between WLC and DHCP switch.Also hope you dont have any interface which is configured on WLC with 0.0.0.0 address.
Regards
Najaf
Please rate when applicable or helpful !!!
01-08-2013 09:36 PM
yes it is a Trunking between the WLAN interface and to the Switch were it is connected...
I had removed the DHCP cope from the switch and configured on the router...
And rebooted the WLAN controller and NOW ! i am not getting the wifi SSID.
Please help on this !!!
01-08-2013 09:39 PM
Sorry,
You mean you are not able to view SSID on the wireless device? Is the SSID broadcasted? Can you get the configuration from WLC please?
Regards
Najaf
01-08-2013 09:47 PM
sorry, checked the broadcast SSID was uncheck and found the SSID.
But still not able to get the DHCP Ip address for the wifi clients
01-08-2013 09:51 PM
How to set the DHCP Server Ip address in the WLAN controller.
If i check that show dhcp proxy status i can see that the dhcp server is having the Ip address of the switch which was configured previously. but now the DHCP scope is on router and how can i change it to that ?
01-08-2013 10:13 PM
Hi,
This may help.
Regards
Najaf
01-08-2013 10:14 PM
Changed to the correct DHCP IP address and rebooted the Controller also..
But still clients are not getting the DHCP IP address.. froan the router..
Sholud the DHCP proxy should be enabled or disabled on the WLAN controller, if i am using external DHCP Server..
or
Can i enable DHCP pool in the WLAN only for the Clients who connect to the wifi.. from the IP address which are not in the router DHCP pool (Excluded Ip address).. ?
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide