Cisco Wireless :: 2504 - Using Both External And Internal DHCP On WLC
Nov 25, 2012
I am wondering if the folowing is a valid configuration:
WLC2504
AP2600
I need 3 SSID/VLAN, 1 for corporate devices, 1 for coporate smartphones, 1 for guest.
Port 1 on the 2504 should be used for management and corporate devices and connect to the corp network. Port 2 is for smartphones/guest and will be connected to a Cisco ASA 5515 that is connected to a second ISP.
Corp devices should get IP from an Windows DHCP. Smartphones/guest should get IP from the WLC. Is this possilbe? I read this in a document "To use the WLC as a dhcp, you need to enable DHCP proxy as it is required." Some how I am imagining that this will mess with the Windows DHCP. Is it better to use the ASA as DHCP for smartphones/guest?
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Mar 25, 2013
setup a DHCP server on a WLC 2504. I'll try to resume my configuration:
I have 2 networks: inside users (vlan 1) and external users (vlan)
My controller uses the port 1 to connect to the switch, which has a trunk with WLC.
I have two routers, one using vlan 1 (192.168.3.0/24) and one using vlan 10 (200.X.X.X). All ports to these routers are access ports on their respective vlans.
I have 2 SSID, one for inside, other to outside. Inside is working very well.
To the outside I created a DHCP escope and already set the IP of the management interface 192.168.3.119.
Managemente interface (vlan 1 inside): 192.168.3.119/24
Outside interface (vlan 10): 200.X.X.195 - Default gateway 200.X.X.X.193
I alredy checked the DHCP Proxy in Advanced option.
See the output of the debug client:
(Cisco Controller) >
(Cisco Controller) >
(Cisco Controller) >
[Code].....
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Mar 24, 2013
I'm planning to use these with a 2504 controller. However, I cannot find a straight answer on whether or not the External Antennas provide better coverage than the Integrated Antennas? These will be wall mounted in a combo office/warehouse environment. Also, I cannot figure out if the External Antennas are even included with the 1602E (AIR-CAP1602E-A-K9)? or what if any power adapter/ injector is included with the AP's?
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Dec 18, 2011
I am having an issue with internal and external clients. When we have the nat ip configured on the controller we cannot connect internal ap's at all. When we take the nat ip out it works fine. We are on code 7.0.220. I have tried the following command <config network ap-discovery nat-ip-only disable> and it did nothing.
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Mar 19, 2013
I have a few 1142N Aironets with internal antennas in place, and I am not thrilled by its coverage. I want to extend my wireless network because of a new building which led me to the following question;Is there is any difference in wireless coverage when using external dipole antenna’s (the small ones, for example the AIR-ANT2524 for a new 2600 Aironet) versus the internal (dipole) antenna’s. I am aware you have more options when using external antenna’s, such as omni, directional, outdoor etc.
For an indoor office or warehouse deployment, where temperature is not a concern, why would I buy for example the 2600E with 4 dipole antenna’s over the 2600i?I have read most Aironet datasheets and their antenna options, but can’t find a word about the advantages of external dipole antennas. I would expect external antennas would give better coverage.. is this true?
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May 21, 2013
I have a 2504 WLC and 1042 ap's. Everything worked great in my test enviroment (of course). Now when I want to deploy the wireless, the ap's are not getting and ip for the windows dhcp server.
I have option 43 configured in dhcp, sub option 241>ip address of the controller
I have my A record in dns, cisco-capwap-controller.
*Mar 1 00:03:17.050: %CAPWAP-3-ERRORLOG: Not sending discovery request AP does not have an Ip !!
Not in Bound state.
*Mar 1 00:03:27.050: %CAPWAP-3-ERRORLOG: Not sending discovery request AP does not have an Ip !!
*Mar 1 00:03:27.054: %CAPWAP-3-DHCP_RENEW: Could not discover WLC using DHCP IP. Renewing DHCP IP.
*Mar 1 00:03:37.054: %CAPWAP-3-ERRORLOG: Not sending discovery request AP does not have an Ip !!
*Mar 1 00:03:47.054: %CAPWAP-3-ERRORLOG: Not sending discovery request AP does not have an Ip !!
*Mar 1 00:03:57.054: %CAPWAP-3-ERRORLOG: Not sending discovery request AP does not have an Ip !!
*Mar 1 00:04:07.054: %CAPWAP-3-ERRORLOG: Not sending discovery request AP does not have an Ip !!
Not in Bound state.
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Aug 25, 2012
i have configured wlc 2504 .in that i have configured two interfaces.one is guest, 2nd is internal user, the pblm when user try to connect with that contain ssid user not getting ip address,
i have connected only one link between core to wlc on port 1.for guest interface i used port 4.but no physical link.
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Aug 8, 2012
My problem, in a nutshell, is that clients do not get an IP from an external DHCP server when connected to a guest VLAN.
My current setup is:
Native VLAN 1 (192.168.2.x)
2008 DHCP Servers
2504 WLC
[Code].....
The guest WLAN just uses WPA and a PSK and is set to interface vlan101 There rest of the 2504 config is default.
The ports that the WLC and APs are connected to are tagged on the correct VLANs. (is that even necessary for the AP now?)
Ive changed the interface config around a hundred times now with no luck. No matter what a client will not get an IP.
Could this be due to the 2504 and ASA both acting as DHCP relays? Ive tried setting the IP of the DHCP on the dynamic interface to many different things with no luck.
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Jan 7, 2013
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. [code]
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Apr 17, 2013
I am looking to enable the internal DHCP on my WLC. I have enabled it and it seems to be operating correctly but I think my routing and or settings allowing me to access anything beyond the private network is wrong.
DHCP is handing out correct IP info and DNS info.How do I route the new private network (10.1.9.*) out to our existing 10.1.4.1. (management IP is 10.1.4.253) Can this be done within the WLC ?
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Nov 7, 2012
All controllers are in version 7.2.111.3.C1 is a 5508, it is ou anchor controller.C2 is a 5508, it is a big site controller.C3 is a 2504, it is a small site controller. C2 and C3 are in the same mobility group than C1 (and all is up up in mobilty managment). When "DHCP Addr. Assignment" is enable on C1 : Clients on C2 received their IP address by our external DHCP server via C1 and the guest tunneling betwenn C1 and C2 and all is working fine. Clients on C3 don't received their IP address by our external DHCP server via C1 and the guest tunneling betwenn C1 and C3, so nothing work.
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Apr 17, 2013
I am looking to enable the internal DHCP on my WLC. I have enabled it and it seems to be operating correctly but I think my routing and or settings allowing me to access anything beyond the private network is wrong.
DHCP is handing out correct IP info and DNS info. How do I route the new private network (10.1.9.*) out to our existing 10.1.4.1. (management IP is 10.1.4.253) Can this be done within the WLC ?
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Feb 6, 2012
I have a cisco 2504 running 7.0.220.0. I am trying to configure Web Auth for External Redirect, Passthrough. I have a page created on an external web server that was taken from the Web Auth Bundle and modified. It is a simple "accept" or "reject" on a Terms and Conditions page. I have a Pre-Auth ACL configured to only allow communication to the server the T&C page resides on.
When I connect to the SSID, the page redirects to the external URL and the the URL shows up in the browser window with all the variable data as a GET on the URL line, but the page never loads. It just hangs. I can copy the the URL data, paste that in once I am on-net, and the page loads just fine.
So, something is happening when the WLC is attempting to proxy-redirect the page back to the client.
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Jul 4, 2012
I have Cisco WLC 2504.I was configured one wlan with external web-authentication.External web server is apache on freebsd.When user connect to wlan and open web browser, wlc redirects client to external web page, where client must input hist credentials.When client click "submit" button on external web auth page, wlc initiates RADIUS request to radius server.Radius server(freeradius) is on the same server, where apache running.
sometimes, when client enter credentials on external page and click "submit" button, wlc suddenly redirect client on internal default auth page.
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Aug 22, 2011
The two controllers are having two internal DHCP servers with the same range in LAN (enx1,enx2). but i have specified which is primary DHCP server(enx3) in WLAN interface.
Now if a new user added into network, will he get IP address from primary dhcp(WLC) or AP connected WLC.
if two users connected to 2 diff AP's which are connected to 2 WLC will get the same IP address? since having same address pool configured.
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May 6, 2013
I found a link to accomplish this on the old code but how can I get this done on 8.4.
[URL]
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Jun 10, 2013
I have a 2600 I am trying to setup for educational use.
My Cable ISP has issued me 5 routable IP's through their SMC modem 86.28.12.226-229. The SMC modem is .225. Currently the internal network can get out through .229 as expected but nothing outside (tcp 80 to web server) can get through. When I assigned the ip's to e0/1 as secondarr I could get it to route from the inside network (so hitting .226 80 went to the correct place) but it still didn't work from the outside - plus I read that wasn't a great way to do it anyway.
!
interface FastEthernet0/0
description LAN Interface
[Code].....
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Sep 22, 2012
I have a checkpoint Safe@Office 500 firewall router, connected to adsl via another adsl device in bridged mode.We needed to assign an external IP to a device behind the firewall.We contacted the ISP, and now they have assigned an additional IP to our adsl account.I have read from the documentation that:"NAT can be defined automatically via the network object (Node, Network or Address Range). When you define NAT via the network object, rules are automatically added to the Address Translation Rule Base"....so I add the object, with the external IP given to us by our ISP, and the wizard simply complains that the IP address is invalid.My thoughts are that the router does not know about the additional IP provided by our ISP. If so, how do I tell the router that there are other IP addresses available to use? I have rebooted the router, and no luck.
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Jun 20, 2011
i can can ping my host externally from another ip however i have left my house without port forwarding to my pc is there a way to connect to my pc via something like this command "xxxx.dyndns-home.com:192.168.1.100" i have tried this and does not work as it does not like the ":"truth be told my real goal is to ultimately be able to look at my webcam as it is pointed at a homebrewing project which i need to see. this is what i want to work on setting up while in rdp?
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Apr 2, 2013
I have just setup a new WLC 2504 controller to manage a WiFi service that will span 6 geographic locations. The local networks at each location are on different subnets (all 192.168.x.x) and are linked up via IPSEC VPN links, and there is Active Directory spanning the sites, with DNS and DHCP servers running at each location.
I tested the WLC at our main office with a single AP, and it worked fine. The AP set itself up, and wireless devices connect with no probs. Great! Yesterday I headed out to one of our remote sites, and connected an AP to their network - and that seemed to work fine too. Within a few minutes I was able to see the WiFi network I'd setup, and my smartphone connected to it straight away (as I'd rpeviously connected at the main office), so I was pretty happy that all was working well.
This morning however I've had notification that wifi performance at the remote site isn't great. I've got someone to check their ip address, and I've found that their IP address and default gateway match the LAN at the main office where the WLC is based - NOT the LAN where the wireless client is. Obvioulsy this is not ideal!
(I guess I HAVE done something wrong!?). And how can I get wireless clients at remote sites to pick up an IP from the DHCP server at THEIR site?
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Jun 28, 2012
We created the management interface, an internal DHCP scope in same subnet, and Two SSID tied to the same management interface:
- when we connect to the first SSID we have and IP address
- but when we connect to the secone SSID: impossible to get an ip address - auth and association are OK
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May 7, 2012
I am hoping to get your feedback around the dhcp issues I am facing with Two Centrally Switched Wireless LANs. The setup is as follows:
- I have a WLC 5508 which has been configured with 4 SSIDs, out of which 2 are using Central Authentication and Switching. - I have an LWAP connected to the WLC in HREAP mode. - WLC is configured as the DHCP server for clients connecting to the SSID 'Guest'. For the rest, I am using external dhcp server. - Only one scope for Guest Interface is setup on the WLC.
Problems:
1. As far as I know, for WLC to act as internal dhcp server, it is mandatory to have the proxy enabled, but the Clients connecting to SSID 'Internet' are unable to get an ip address from the external dhcp server, if dhcp proxy is enabled on the WLC. If i disable the proxy, it all works fine.
2. DHCP does not release the ip addresses assigned to clients even after they are logged out.
3. If a machine which was earlier connected to 'Guest' SSID connects to the 'Internet' SSID, it requests the same ip it was assigned by the WLC which it was assigned under 'Guest', but gets tagged with the V LAN configured on the management interface.
************Output from the Controller********************
(Cisco Controller) >show sysinfo
Manufacturer's Name............. Cisco Systems Inc.Product Name................ Cisco Controller Product Version................. 7.0.116.0Bootloader Version................ 1.0.1Field Recovery Image Version..................... 6.0.182.0Firmware Version..... FPGA 1.3, Env 1.6, USB console 1.27Build Type.......... DATA + WPS + LDPE
[code]...
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Jul 21, 2012
A client wants us to use the internal DHCP server on a 5508 instead of Windows DHCP. They will have 15 APs initially and upto 25 later. The docs on the 7.2 WLC make it sound like this is discouraged: Internal DHCP Server.
The controllers contain an internal DHCP server. This server is typically used in branch offices that do not already have a DHCP server. The wireless network generally contains 10 access points or fewer, with the access points on the same IP subnet as the controller.
In this case, the APs will not be in the same subnet as the Managment Internet.Is it a mistake to use the internal DHCP with upto 25 APs (3 WLANs)?
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Apr 8, 2008
I am trying to setup a guest vlan. I set up an interface for the guest vlan on my 4402 controller. I assigned the guest vlan interface an IP of 192.168.2.10 with a 24 bit subnet mask.
This vlan will go to my DMZ where there is no DHCP server so I need to setup the internal DHCP server. I created a new scope but I'm having trouble with what to put in the Network field for the DHCP scope. The pool addresses are 192.168.2.100-200. with a 24 bit subnet mask.
Every time I try to apply the configuration I get an "error in setting DHCP scope network and netmask".
I've tried using:
192.168.2.10
192.168.2.255
192.168.2.254
as entries for the Network setting but no go. The docs say to enter the IP address used by the management interface with subnet mask applied.
I was assuming they meant the interface for the guest vlan.
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Jan 12, 2012
How to clear dhcp lease in WLC 6.0.199 from the IP leased from internal server?
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Apr 5, 2012
I've got a new CT2504 controller with software version 7.0.220.0 Regarding to [URL]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
[code].....
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Jan 16, 2013
I have a 4402 (version 7.0.235) working with 10 units of 1121 APs connected to it. The WLC is not configured to work in LAG mode. Physical portt #1 is connected to the Main Switch (trunk). I have 3 WLAN mapped to 3 Different VLAN and Everything (security and internal, external DHCP) is working swell...Now- I have connected Physical port #2 directly to an ADSL Router (giga port), Configured Port 2 as untaggedwith the proper IP details.I have configured this interface to receive DHCP from the ADSL Router and for some reason, Clients are not getting addresses.When I assign a Static address to my laptop I get internet access and all is nice. I tried configuring The WLC internal DHCP server (instead of the ADSL router) and that didn't work. It seems like a DHCP problem but I dont understand the source of the problem of think of the solution.When turning off the proxy settings I noticed that it worked. Is there anything to do with that? The problem was that after a while the other WLANs starting causing DHCP issues as well.
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Sep 15, 2011
The problem is that the PABX is sending out an internal address in it's INVITE messages and the ASA5505 isn't changing the internal address to the external address.We need> From: Calling Number <SIP: SIP Username@Public IP Address>However our PABX sends out> From: Calling Number <SIP: SIP Username@Private IP Address>. How to translate the internal IP address to the external IP address on an ASA 5505?
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Mar 2, 2012
I have 3 external ips from my isp:
222.222.222.221
222.222.222.222
222.222.222.223
The first one I use to provide internet access to my office. The other two I'm going to use for the following: I'm going to deploy a server in internal network which must have 2 external ips on his network interface (& one internal ip on the second,but that's ok: I cannot put an extra network switch before asa & plug this server there: this server is virtual & is on esxi host in internal network. External ips must be assigned to servers' interfacw,bot just forwarded there (ms direct access requirement).
My current config:
!
ASA Version 8.4(3)
!
hostname msk-office
[Code]....
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May 29, 2012
Is it possible to assign IP addresses to remote site WIFI users from local DHCP server and forward all other traffic to 2504 WLC?
[WIFI Users] >--------<AP (DHCP server) >------ VPN ---------< WLC
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Jul 17, 2012
Our secondary site accesses the internal intranet via a link, which is basically:
[URL] where externalip is the IP address of my router.
* This used to work fine before we migrated from ADSL (6mb up / 0.5mb down) to Fibre(70mb / 20mb) *
Internally, I access the same link, but via [URL] Internally it loads in 2 seconds, externally it is taking 68seconds(ish)..
I can't work it out, the fibre shouldave made things loads quicker but is infact very slow. I'm wondering if something network wise is going on.
The intranet is a php intranet sitting on apache, and using postgresql as the database. Other pages load fine, this specific index.php page does quite a lot of DB connections and so on, but as I say before, it worked fine before the migration.
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Jun 29, 2011
I can hear nothing sound driver disabled... windows explorer wont open...and my notepad and calculator wont work either... how do i remove it..
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Feb 24, 2013
I have a cisco wlan controller (2100) running software 7.0.235.0. I have the internal private wlan running off of port 1 and that is working fine with an internal dhcp server.Is it possible to setup another ssid (guest) and have the interface directly linked to a static ip on the WAN and also use the built in cisco internal dhcp server?
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