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Cisco WLAN controller "error in  setting DHCP scope network and netmask"

Posted on 2013-05-27
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Last Modified: 2013-06-17
trying to setup the internal DHCP and I keep getting this error "error in  setting DHCP scope network and netmask". I've used the management port for the network address and still the same error. I also tried a address other than the management ip but in the same subnet.
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Question by:ChuckT
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Craig Beck earned 500 total points
ID: 39199289
In the network box you need to put the correct network address (not the first IP in the range)

So, if your network range is 192.168.0.1 - 254 you'll need to put 192.168.0.0 in the network box.

Can you confirm exactly what you're entering into each box?
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by:ChuckT
ID: 39203363
this allows me to apply the settings without the error
Pool Start Address   192.168.6.10
Pool End Address   192.168.6.100
Network   192.168.6.0
Netmask 255.255.255.0

is not giving ip out though. set dhcp in management interface to itself.
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by:Craig Beck
ID: 39203898
Is the WLAN you've configured using the management interface?
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by:ChuckT
ID: 39214190
yes
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by:Craig Beck
ID: 39214231
Can you turn off authentication for the WLAN and try again?
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by:ChuckT
ID: 39223339
putting the dchp on a WLAN without authentication works ?,
sorry went on vacation.
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by:Craig Beck
ID: 39223560
Ok so you're putting in the wrong key, or your client doesn't like the authentication/encryption you're using.

What options are you setting in the WLAN Authentication Layer2 tab?
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by:ChuckT
ID: 39224348
worked only once tried again and nothing, but that was the first sign of it working. I was using Authentication layer 2 tab.
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by:ChuckT
ID: 39224350
Forgot to mention I do have a windows 2003 dhcp server on the lan which is what is giving the address instead of the controller
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by:Craig Beck
ID: 39225874
What settings did you put in the Authentication Layer 2 page??

Can you send me the config from the WLC??
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by:ChuckT
ID: 39226747
Layer 2 Security 6    WPA+WPA2  
  MAC Filtering null
 Fast Transition null
 
WPA+WPA2 Parameters  
 
WPA Policy   null  
WPA2 Policy   yes
WPA2 Encryption AES  

Authentication Key Management
 802.1X   disable
CCKM   disable
PSK  Enable
 
FT 802.1X          disable
FT PSK          disable
 
PSK Format  ASCII  
     
 WPA gtk-randomize State  Disable
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by:Craig Beck
ID: 39227091
So do you want the WLC to give DHCP, or the Server 2003 box?
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by:ChuckT
ID: 39231623
WLC dhcp for WLAN's. 2003 still active for hardwire devices.
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