Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Community Member

WLC CT2504: Interface IP can not be used as internal DHCP server IP

Hello all,

I've got a new CT2504 controller with software version 7.0.220.0

Regarding to

http://www.cisco.com/en/US/products/ps6366/products_tech_note09186a0080af5d13.shtml

I've tried to configure the internal DHCP on a dynamic-interface, but this is not possible:

(Cisco Controller) >config interface dhcp dynamic-interface vlan401 primary 172.16.x.3

vlan401 Interface IP can not be used as internal DHCP server IP

It works, if I use another IP (aka DHCP server) in the same subnet or in another subnet. It works also for the management interface.

(Cisco Controller) >show interface detailed management

Interface Name................................... management

MAC Address...................................... d0:c2:82:xx:xx:xx

IP Address....................................... 10.2.x.135

IP Netmask....................................... 255.255.255.240

IP Gateway....................................... 10.2.x.129

External NAT IP State............................ Disabled

External NAT IP Address.......................... 0.0.0.0

VLAN............................................. 400

Quarantine-vlan.................................. 0

Active Physical Port............................. 1

Primary Physical Port............................ 1

Backup Physical Port............................. Unconfigured

Primary DHCP Server.............................. 10.2.x.135

Secondary DHCP Server............................ Unconfigured

DHCP Option 82................................... Disabled

ACL.............................................. Unconfigured

AP Manager....................................... Yes

Guest Interface.................................. No

L2 Multicast..................................... Disabled

Scopes are defined and Proxy is enabled.

(Cisco Controller) >show dhcp summary

  Scope Name                   Enabled          Address Range

ap                               Yes      10.2.x.137 -> 10.2.x.140

intern                            Yes      172.16.x.20 -> 172.16.x.30

(Cisco Controller) >show dhcp proxy

DHCP Proxy Behaviour: enabled

Has somebody an explanation for this issue?

Thanks in advance,

Regard,

Robert

Everyone's tags (4)
1 REPLY
Hall of Fame Super Silver

Re: WLC CT2504: Interface IP can not be used as internal DHCP se

You can use the internal dhcp, but you need to set the primary dhcp as the management ip. So in your dynamic interface, your primary dhcp is configure with the wlc management ip address. Dhcp proxy also needs to be enabled and is enabled by default.

Thanks,

Scott Fella

Sent from my iPhone

-Scott
*** Please rate helpful posts ***
5051
Views
10
Helpful
1
Replies
CreatePlease to create content