Internal DHCP using in WLC 4112

Similar Questions

• Cisco WLC 2504 internal DHCP does not work properly

  Hi all

  I m trials with a Cisco WLC 2504 and some APs of 1832. I set up a DHCP scope on the interface of the controller with 2

  a large number of different configurations, but the DHCP protocol does not work and Don t Access Point to obtain an IP address. My first question: is it possible to do DHCP for Access Points or only for wireless clients?

  These are my interfaces:

  Interfaces

  

  Interface of the PA-Manager:

  Interfaces1

  

  Interfaces2

  

  My DHCP scope:

  Scope1 DHCP

  

  Portee2 DHCP

  

  Advanced DHCP:

  DHCP Scope3

  

  I forgot something? Is there anyone using DHCP for its access points?

  Thank you!

  Hello

  On Cisco WLC internal DHCP, you can add the option 43 to say where APs must register. In this case, they will try to resolve the DNS CISCO-CAPWAP-CONTROLLER or CISCO-LWAPP entry.

  Let me explain briefly how AP-Manager works on WLC:

  1. Boots of Access Point and sends a discovery request to the management interface of the controller using the intellectual property you configured as DHCP Option 43 (as described above, it can be resolved by the DNS entry)
  2. Controller, sends it a response discovered that contains the name of the system, addresses AP-Manager, the number of access points already connected to each interface AP-Manager and the overall capacity of the controller.
  3. Joints access point controller using the less loaded interface AP Manager.

  With this, every AP Manager must have a good configured interface and be connected to a different port, no LAG.

  I drop a post here sometimes there is which might help:

  https://supportforums.Cisco.com/document/118311/configuring-multiple-AP-...

  Thank you

  PS: Please do not forget to rate and score as correct answer if this answered your question

• WLC 5508 internal DHCP server issues

  Hello

  I'm hoping to get your comments around the issues of dhcp, I faced with two centrally switched Wireless LAN. I have attempted to explain the installation and the problems below and would be grateful if anyone can suggest a solution for the problems I am facing:

  The configuration is the following:

  -J' have a WLC 5508, which has been configured with 4 SSID, of which 2 are the Central authentication and commissioning.
  -J' have a LWAP connected to the WLC in HREAP mode.
  -WLC is configured as a DHCP server for clients that connect to the SSID "Guest." For the rest, I'm on external dhcp server.
  -Only one scope of comments Interface is configured on the WLC.

  Problems:

  1. as far as I know, to WLC serve internal dhcp server, it is mandatory to have the proxy enabled, but the Clients connecting to 'Internet' SSID are

  Unable to get an external dhcp server ip address, if the proxy dhcp is enabled on the WLC. If I disable the proxy, everything works fine.

  2 DHCP does not release the ip addresses assigned to clients, even after that that they are connected.

  3. If a machine that has previously been connected to "Guest" SSID connects to the 'Internet' SSID, he asks the same ip address, he was charged by the WLC assigned under "Guest", it gets the tag with the Vlan configured on the management interface.

  The controller output *.

  (Cisco Controller) > show sysinfo

  Name of the manufacturer... Cisco Systems Inc..
  Product name... Cisco controller
  Version of the product... 7.0.116.0
  Bootloader Version... 1.0.1
  Retrieving Image Version field... 6.0.182.0
  Firmware version... Console USB 1.3, 1.6 Env FPGA, 1.27
  Build Type....................................... DATA + WPS, LDPE

  (Cisco Controller) > show interface summary

  Name interface Vlan Id IP port address Type Ap Mgr. Gu

  EST
  -------------------------------- ---- -------- --------------- ------- ------ --
  1 301 10.255.255.30 dynamic guest no no
  Management 1 100 172.17.1.30 static yes no

  service-port s/o s/o 192.168.0.1 static no no
  n/a n/a 10.0.0.1 no nonstatic virtual

  (Cisco Controller) > show wlan summary

  Number of wireless LANs... 4

  Profile WIFI WLAN ID name / name of the SSID status Interface
  -------  -------------------------------------  --------  --------------------
  1 active LAN management
  2 active Internet management
  3 active active management management
  4 comments comments enabled

  (Cisco Controller) > show dhcp detailed comments

  Scope: comments

  Enabled.......................................... Yes
  Lease Time....................................... 86400 (1 day)
  Pool Start....................................... 10.255.255.31
  Pool End......................................... 10.255.255.254
  Network.......................................... 10.255.255.0
  Netmask.......................................... 255.255.255.0
  Default routers... 10.255.255.1 0.0.0.0 0.0.0.0
  DNS Domain.......................................
  DNS.............................................. 8.8.8.8 8.8.4.4 0.0.0.0
  NetBIOS name servers... 0.0.0.0 0.0.0.0 0.0.0.0

  (Cisco Controller) > show detailed interface management

  ... Management interface
  MAC address... e8:b7:48:9 b: 84:20
  IP Address....................................... 172.17.1.30
  IP Netmask....................................... 255.255.255.0
  IP Gateway....................................... 172.17.1.1
  State IP NAT outside... People with disabilities
  External IP NAT... 0.0.0.0
  VLAN............................................. 100
  Quarantine-vlan... 0
  Active physical Port... 1
  The primary physical Port... 1
  Port of physical backup... Not configured
  Primary DHCP server... 172.30.50.1
  Secondary DHCP server... Not configured
  Option DHCP 82... People with disabilities
  ACL.............................................. Not configured
  AP Manager....................................... Yes
  Comments interface... NO.
  L2 multicast... Activated

  (Cisco Controller) > show detailed comments from interface

  Interface name... Comments
  MAC address... e8:b7:48:9 b: 84:24
  IP Address....................................... 10.255.255.30
  IP Netmask....................................... 255.255.255.0
  IP Gateway....................................... 10.255.255.1
  State IP NAT outside... People with disabilities
  External IP NAT... 0.0.0.0
  VLAN............................................. 301
  Quarantine-vlan... 0
  Active physical Port... 1
  The primary physical Port... 1
  Port of physical backup... Not configured
  Primary DHCP server... Not configured
  Secondary DHCP server... Not configured
  Option DHCP 82... People with disabilities
  ACL.............................................. Not configured
  AP Manager....................................... NO.
  Comments interface... NO.
  L2 multicast... Activated

  (Cisco Controller) > show dhcp leases

  IP MAC remaining rental period
  00:21: 6a: 9 c: 03:04 10.255.255.46 23 hours, 52 minutes, 42 seconds< lease="" remains="" even="" when="" the="" client="" is="">

  Example of customer connected to the Vlan right with an ip address from the incorrect interface. *************

  (Cisco Controller) > show customer detail 00:21: 6a: 9 c: 03:04
  MAC address of the client... 00:21: 6a: 9 c: 03:04
  User name of the client... N/A
  AP MAC address... a0:cf:5 b: 00:49:c0
  AP Name.......................................... mel
  Status of the client... Associates
  Customer of the NAC OOB State... Access
  Wireless LAN Id... 2<   'internet'="">
  BSSID... a0:cf:5 b: 00:49: this
  Connected to... dry 319
  Channel.......................................... 36
  IP Address....................................... 10.255.255.46< ip="" address="" assigned="" from="" the="" 'guest'="" interface="" or="" dhcp="" scope="" on="" the="">
  Association ID... 1
  Authentication algorithm... Open System
  Reason code... 1
  Status code... 0
  Session timeout... 1800
  Client CCX version... 4
  Version of E2E customer... 1
  QoS Level........................................ Silver
  Beacon priority P 802,1... disabled
  Support WMM... Activated
  Power Save....................................... OFF
  State of mobility... Local
  County of movement mobility... 0
  Complete security policy... Yes
  State Policy Manager... RUN
  Policy Manager rule created... Yes
  ACL name... no
  Status to apply ACL... Not available
  Type of strategy... N/A
  Encryption Cipher... None
  Protection management framework... NO.
  EAP Type......................................... Unknown
  Data HARVEST-H switching... Central
  H - HARVEST authentication... Central
  Management of the interface...
  VLAN............................................. 100< right="">
  Quarantine VLAN... 0
  Access VIRTUAL LAN... 100

  Well it's good news. At least you have to operate.

  Thank you

  Scott Fella

  Sent from my iPhone

• unloading of feature to make dhcp off the WLC and put it on Active Directory.

  I need to use the feature of unloading to dhcp off the WLC and put it on Active Directory.  Someone at - it a walkthrough or a page for this?  I know it's just a checkbox and a redirect to the new dhcp server, but where the hell is the configuration on the WLC?

  Thank you!

  -anne

  You can go there.

  http://www.Cisco.com/c/en/us/TD/docs/wireless/controller/7-4/configuration/guides/consolidated/b_cg74_CONSOLIDATED/b_cg74_CONSOLIDATED_chapter_01001001.html

  Point to your existing ad integrated DHCP server.

• Disable dhcp (leases) to WLC links

  Hi all

  could someone tell me how I could clear the dhcp to a 7.0 WLAN controller pairings? I watched "Setup guide" and "reference of the order", but I found nothing.

  Thanks and greetings

  Holger

  Hi Holger,

  Thanks for the reply!

  If you are running 7.0 and higher then its possible... Verified earlier the same on my WLC... is the command...

  
  

  (WISN-slot2-2) > config dhcp lease clear?

  Enter the IP address.
  erase everything all leases.

  I would like to know how it works for you!

  Concerning

  Surendra

• No dhcp use connected vrf ip

  Hi experts,

  I would like to know what this command does? I can't found on cisco.com.

  Hi John,.

  This command indicates the router if requests from DHCP directly connected interfaces VRF to allocate IP addresses from a global DHCP pool (which is not specifically related to any VRF), or if a DHCP by VRF pool should be used to assign addresses.

  Consider the following configuration:

  IP vrf MyVRF1

  RD 1:1

  !

  IP vrf MyVRF2

  RD 1:2

  !

  Global IP dhcp pool

  192.0.2.0/24 network

  !

  dhcp ForMyVRF1 IP pool

  VRF MyVRF1

  192.0.2.0/24 network

  !

  dhcp ForMyVRF2 IP pool

  VRF MyVRF2

  192.0.2.0/24 network

  !

  interface Fa0/0.10

  encapsulation dot1Q 10

  192.0.2.1 IP address 255.255.255.0

  !

  interface Fa0/0.20

  encapsulation dot1Q 20

  IP vrf forwarding MyVRF1

  192.0.2.1 IP address 255.255.255.0

  !

  interface Fa0/0.30

  encapsulation dot1Q 30

  IP vrf forwarding MyVRF2

  192.0.2.1 IP address 255.255.255.0

  With no dhcp ip use vrf connected, if a query DHCP comes which interface here, he will be assigned an IP address of the overall global DHCP pool, with no regard for the VRF the interface through which the request is entered in. DHCP VRF ForMyVRF1 and ForMyVRF2 pools will remain completely unused and intact, although only being defined.

  With the dhcp ip protocol use the vrf is connected, the behavior becomes what you would normally expect-Fa0/0.10 requests will be served DHCP Global pool, the requsts which crosses the Fa0/0.20 in MyVRF1 VRF will be served by the DHCP ForMyVRF1 pool and Fa0/0.30 requests will be served DHCP ForMyVRF2 pool as the Fa0/0.30 is assigned to the MyVRF2.

  Best regards

  Peter

• Addr DHCP. Disposal - WLC required

  Can guys, someone tell me what this means?

  I take this means that security policy will not pass until the user has a DHCP address? Is this correct?

  Thx a lot together.

  Ken

  You are right... This allows only the traffic of users who have obtained their IP through dhcp. On the reverse, allow this because of issues where some clients can not connect even if they have dhcp. Also the ARP errors have been known to appear in the newspapers.

  If you really want to use this feature, go ahead and give it a try. If you have more problems when activated, then you know that this feature is not going to work for you.

• Lost the VPN tunnel between 2 site when internal client using client vpn

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  When 1 of the internal computer try to connect to another server VPN customer using Cisco VPN Client v4.8, she will appear in drop/disable/loss of the tunnel between us VPN and remote offices. The tunnel is still established but no traffice between site 2. (cannot all ping)

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  br >
  Kind regards

  EvilOne

  VMware vExpert 2009

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• How to get the ID internal interface using alternative methods

  Do anybody has an idea, how can I get internal ID of the Interface is there a substitution method I can use to get the code.
  
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  Hello

  You can use API, <%=odiRef.getPop("I_POP")%> to get the internal ID of the interface.

  Thank you
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  What is the best way to debug DHCP throughout this unit activity.  We have this setting of the unit as a demo at a customer site, and is having some trouble with DHCP...

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  Thank you!

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