When on the management interface the clients can't get dhcp but the AP's can on the same vlan. I've tried enabling and disabling dhcp proxy, and using a remote dhcp server as well as the internal server. This same config works on the 4402 we're replacing with version 5.2.193 on it.
View 13 RepliesI 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.
View 7 Replies View RelatedWhy is it that the dhcp on my router is no longer able to give out ips or rather it assign them as for as it concerned as it will list say 199.170.0.102 but the device will have none or make up one for it's self and never get the ip that the routers dhcp gave it this happens on all devices. I know power cycling will fix it temporally but usually it will start doing it again in a few hours also I know that I can use a static ip this was my way around this problem but I have one device that won't use nothing but dhcp a printer. I had an old linksys router that did this and I figured it's old it's slow time for a new one after a few months it started, some computers are on the fringe of being able to get a signal but are still fair also even with static ips they sometime stop connecting and we have to disable the connection then reconnect to fix it the router is a dlink 615 dual band set to only G/B because 1 most devices only g 2 the one computer that has a wireless n is 70 ft away and works better with g.
View 13 Replies View RelatedHow can i set my OpenWrt 10.03 router to not to use 192.168.1.0/24? instead, use a /32 mask, so every client, that gets an ip from the DHCP server just can't sniff the network traffic - it would be a great security feature to safely use e.g.: FTP!
View 2 Replies View RelatedWe have 2 WLCs, 4402 (main) and 5508 (backup). While we turn on both devices, 4402 have 10 APs, and 5508 have 10 APs as well. Total connected clients will be 120+, but when we turn off either 1 wlc, let's say only 4402 is power on, total 20 APs joined, but the total client will be 90+, never reach over 100 clients. The same happened on 5508, is there any maximum associated connection on WLC?
View 1 Replies View RelatedI am using wireless system with certificate athentication ( CA Server ) and RADIUS server.
I want to know if certificate is not installed and configured in wireless client laptop.
Do client get athenticate in wireless system and get access of wireless network ?
Also want to know any configuration required in WLC CISCO 4402 for authentication with CA server of client laptop.
Recently (within the past 2 months) I've been having some issues with my 4402 wLAN controller.
The issue is thus:
1) New wireless clients (those without exsisting DHCP leases) are unable to properly connect to our wireless network.
2) Those same systems (and other systems) have no issue getting online via a wired connection (where available).
3) Devices like iPad, tablets, laptops partially connect but do not get a valid IP address.
Our config:
1) DHCP is handled by a seperate server (NOT the 4402 - it's DHCP setting is disabled)
2) Our wLan is not on a seperate network than our wired LAN
3) Wireless devices attempting to connect include iPads and laptops mostly.
4) We're a school with about 300 systems (primarily Windows XP machines).
5) 25 access points controlled by the 4402 (our only wLAN controller)
Important Notes:
1) No configuration changes have been made to DHCP or the 4402 device in a couple years.
2) 4402 Software Version = 4.0.217.0
The problem first showed up a bit over a month ago. I first thought the issue was DHCP server related , so I started there and didn't find any obvious issues. I did restart the DHCP server (which at that point had an uptime of somewhere over 700 days).
I then also checked the web interface of the 4402 to see what it was reporting. I noticed a somthing:A) As shown in the "WLAN_Issue_EDIT.png" the client count on the controller is showing 628 current clients. We don't have many devices in our entire campus.
I rebooted the controller after hours and that seemed to allievete the issue. Since then, the current client count hasn't ever gone above 60.
Now today I'm having the same issue regarding new clients getting IP addresses. The client count isn't real high on the WLAN controller and I don't see any other obvious issues. I'm torn between this being a DHCP issue or the controller issue (or a combination of the two).
The reason I don't think it's directly DHCP related is that all wired clients seem to be getting address fine.Plus, I've set my tablet device to a static address and it still cannot connect via wifi.
**Update** I've now rebooted the controller and the problem persists (at least on the nearby iPad - Will confirm other devices shortly).
i have Accesspoint WAP200 Model.iam trying to make repeater mode from other routers ( not linksys or cisco) but not works for me.when try to connect to the network which repeated with WAP200 its trying to take ip then failed ( its like DHCP not works in repeater mode)
View 2 Replies View RelatedI have a 4402 which is connected to a 4506 Switch int Gig 3/1 via a trunk port. The Managment and AP-manger interfaces are on vlan 6 [code] I have a 1142N AP also connected to the switch and it pulls a DHCP IP Address and configs etc and registers to the WLC. It too is on Vlan 6 and it is connected to the 4506 on int gig 4/33 which is an access port. [code] I am doing local authentication, so i have added users to the WLC.. My problem is that the first client that connected was able to get an IP address and connect to anything internal and external.I then connected another client on another laptop and that client could connect but not get an IP address, it just self assigned.When i look at the clients i can see the MAC address of both Clients on the WLC, but doing a show mac address-table dynamic i only see the MAC of the client that works properly. The client that doesnt get an IP has no entry in the 4506 switch.I am stumped, from what I understand, is that the 2nd clients traffic is being trunked to the WLC , hence it has the MAC address. But I dont know why its not getting a DHCP assigned IP address.
View 37 Replies View RelatedI have 2 4402 WLC's and a central office and was trying to configure an H-Reap Ap but now the entire wireless network is down. Clients arent getting IP's. I cant see anything that is wrong but things are not working like they should.
View 36 Replies View RelatedI have a WRV4400n in my company and almost every day I have to reboot so people can get out to the internet, It lets you see the local network also if I put a desktop on line it will not give a DHCP address, untill I reboot the router. then all is fine, It has the latest greates firmware.
View 1 Replies View RelatedWe have a controlled setup comprising of a 4402 WLC in our Data Centre and 1242AG LWAPs in our branches.The Wireless works well with a mixture of locally switched (h-reap) and centrally switched WLANs.I have a problem where Android devices don't seem to function as they should.I have been using an Android phone (HTC Desire, currently running 2.3.4 OS, but has been a persistant issue since 2.1) and it connects to my home wireless (and others) fine, but when connecting to the Wireless LAN at the office, it connects fine and gets assigned an IP address, but NO data flows. None, like there is no connection at all. I have just been using it on 3G. I figured it might have just been an issue with the hardware, so didn't bother too much.I have just purchase a new tablet (ASUS Transformer, Currently running 3.1 OS) and this does the same thing.I have tried publishing a new WLAN and have tried all types of encryption and authentication al the way down to open and still, no data flow. I have tried statically setting the IP details and still nothing.Interestingly, When I attended the last Cisco Live conference in Melbourne this year, I had my phone and it displayed the same behaviour on the Cisco supplied wireless, BUT, there was a second IPv6 enabled, when connected to that everything worked fine.
View 2 Replies View RelatedI've got threeLinux Boxes (running Centos 6). They were all connected to my cheap WRT54GL-- DHCP worked every time.Absolutely no problems. Both the LInux boxes and the WRT54GL had MTU set to manual, 1492.I replaced the WRTt54GL with the expensive E4200. I set the new router's MTU to manual, 1492. NONE of my Linux boxes ever receive a DHCP address. I look at the logs, and they do DHCPDISCOVER, get DHCPNACK, try several different intervals, and then fail the interface and quit.ALL I did was unhook cables from the WRT54GL and plug into the E4200. Yes, the WRT54GL was powered off. NOTHING was changed in the Linux configs. Yes, DHCP is enabled, address-range assigned, etc. BTW-- one box is dual boot with Win7-- in Win7 (using the same card, obviously), DHCP works just fine. But, Linux doesn't work.
I can give the boxes static IP's, and all is well. Just can't get DHCP to work. I evfen tried putting in DHCP reservations (via MAC assignments) for the E4200-- still doesn't work. The new E4200 is on the 02 firmware (which I believe is cuurent). If I can't iron this simple task out, in a couple of days I'm taking the E4200 back, and getting a refund. I'll stay with my old WRT54GL... it works. Hate to give up on some of the new E4200 features, though.
We currently have a cisco 4402 with firmware version 6.0.182.0 and 4 WLANs currently running on it, we found the need to add an additional WLAN and after the configuration was completed and I tried to connect to it I found that we are not getting an address. If i connect a laptop to the VLAN I can get an IP and am able to browse. If i hard code an IP into a device and connect to the wireless i am able to connect and browse.
View 7 Replies View RelatedI have successfully implemented wireless guest access using 4402 WLC as the Anchor and 5508 as Foreign. The Anchor controller also provides dhcp services to guest clients. The 5508 is LAGged and there is no issue with the guests traffic separated from corporate. At a remote site, there is a 4402 WLC using LAG and also acting as a Foreign controller. But when a client connects to the guest WLAN, it obtains a corporate dhcp address instead of the dhcp address assigned from the Anchor controller. The guest WLAN setting is the same as with the 5508 controller i.e. DHCP server override is ticked and the management IP address of the Anchor controller is specfied. Also DHCP Addr required is ticked. Why the 4400 controller is not forwarding dhcp requests to the anchor controller and instead sending to the corporate dhcp server.
View 36 Replies View RelatedI have this guest wlan working with web authentication, as you may know in order to get authenticated you must have an IP address first then have a valid username and password. The problem is that if you don't have valid credentials you keep the IP address anyways.I'd like to know if there is a way to release the IPs that are not being used? The WLC is the DHCP server for this network.
-WLC4402
-6.0.202.0
i am using wlc 4402 with a mgt ip 172.26.150.x/24 and ap manager ip 172.26.150.x/24, my all ap get the ip address from dhcp . currently in dhcp server 172.26.150.3 to 254 dhcp scope is configured. at mysite some devices are configured like ipad,iphone or galaxy tab with mac binding in dhcp server. now this pool is almost full. i have a policy configured for these devices for mac binding is done in DHCP. to increase pool what are the changes i need to do in wlc. what are the changes i need to do in dhcp server . is policy made for mac binding in dhcp server will get affected by this ?
View 2 Replies View RelatedOur Guest access system seems to be having problems with DHCP. It seems to take a while to deliver an IP address making the client device show the "limited or no connectivity" message, which of course makes the users complain. On one occassion I have seen my own client eventually picking up an address even after the limited connectivity message appeared. On another I saw the debug showing "Dhcp request for autoconfig address", which I suspect is a symptom of the problem.
Our Anchor Controller is the DHCP server and is a 4402 running 7.0.98.0 - I've attached some DHCP packet debug.
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.
I'm monkeying around with an 881-W. Clients can associate and authenticate to ssid 'test', but they cannot get a DHCP address. Clients plugged into f 0 - 3 get DHCP addresses just fine.
I've looked at a lot of different guides, ran debugs etc. When wifi clients make DHCP requests the server never gets them. So there must be some IRB thing going on.
I'm trying to understand my options for assigning addresses to VPN clients on an ASA 5510. Under the ASDM, I have a field for DHCP servers, radio buttons: none, dhcp link, dhcp subnet, and field: client address pools. Cisco's VPN examples demonstrate setting up a client address pool, which I did, but the VPN client isn't assigned a gateway in the process so it can't connect to anything; I really don't understand the point of this. I'd like to create a DHCP pool on the ASA for VPN clients as this seems to be the standard configuration. However, I don't know where in the ASDM to configure this and how it's applied. The only DHCP options I found involved creating a DHCP server on an interface, which I don't want to do since VPN users aren't on a physical interface, right?
View 6 Replies View RelatedI have new 2504 WLC + 1041LAP. I configured the first DHCP scope on WLC and the first WLAN. Then I set WLC DHCP server in WLAN properties and tried to connect to WLAN with wireless clients.
My wireless clients are able to authenticate on WLAN, but not able to get IPs from DHCP. The only lease that DHCP shows is for 1041LAP.
If I set permanent IPs on my wireless clients, they can connect and ping WLC.
I've got a 2106 that I'm installing for a customer and having issues with it assigning DHCP to WiFI clients. What's odd is that this was working at one point at home during testing. Only difference at this point is LAN hardware at the customer location.
Simple config- single flat vlan on Cat2960G switch, ASA5505 serving up DHCP for the network. Wired clients are receiving DHCP fine.
Mgmt IP192.168.0.10/24Mgmt Gateway192.168.0.1Mgmt VLAN0Mgmt Int port1Mgmt DHCP server192.168.0.1AP Mgr Int IP192.168.0.11Virtual GW IP1.1.1.1RF group namerfgrp1SSIDxxxxClient Static IP?noCountry Code802.11a/b/g statusenabledRadio resource mgmt statusenabled I've run dhcpd debug on both the controller and the ASA and I see the DHCPD requests on the controller, but I never see them hitting the ASA.
I don't have the specific version of code it's running, but I know it's 6.0. One of my local Cisco account engineers found some Cisco CSC bugs referencing this issue. One TAC cas even referenced stripping all security off the WiFi, connecting the client and then reimplementing the security again.
When I go into the Network Settings, and the end of the page I find a list named "Number of Dynamic DHCP clients: 7". As far as I know, I should only see 4, all 4 laptops; however, I see 2 UNKNOWN entries in this list, and one name "Macondo". Each of these entries have an option (a link) saying "Revoke" and other "Reserve". I am just wonder if these entries are intruders in my home network. What should I do? I am afraid to break my internet connection. By the way, I set up every single one of my family 4 laptops at home with a WPA-PSK using a very long key.
View 9 Replies View RelatedI've just discovered this thing in Windows Event log. The DHCP-Client log is full with this: the client received a NAK from the DHCP Server. Strangely, they still get the desired IP address. (Which are reserved adresses for the MAC adresses.)So I've looked at the logs in the DIR-615 (rev.D, FW: 4.13), and found this:
View 1 Replies View RelatedMy company AP 1231G is not passing the DHCP address to the client from the DHCP server, my config listed below basicly the AP is on its own VLAN 10.1.123.1 and the DHCP server is 10.1.10.2 -- trying to use iphelper to pass DHCP to clients and the AP is on static IP 10.1.123.2--
!
! Last configuration change at 13:15:56 +0800 Fri May 25 2012 by root
! NVRAM config last updated at 13:15:56 +0800 Fri May 25 2012 by root
!
[Code].....
I recently upgraded a clients WLC and they keep saying they are unable to get an IP address from the DHCP server. It's a simple, flat network and here is what the logs are showing.
*apfReceiveTask: Apr 11 13:37:25.477: %SIM-3-DHCP_SERVER_NO_REPLY: sim_interface.c:1039 Failed to get DHCP response on interface 'management'. Marking interface dirty.
*apfReceiveTask: Apr 11 13:37:17.278: %SIM-3-DHCP_SERVER_NO_REPLY: sim_interface.c:1039 Failed to get DHCP response on interface 'management'. Marking interface dirty.
*apfReceiveTask: Apr 11 13:37:05.880: %SIM-3-DHCP_SERVER_NO_REPLY: sim_interface.c:1039 Failed to get DHCP response on interface 'management'. Marking interface dirty.
*apfReceiveTask: Apr 11 13:13:47.397: %SIM-3-DHCP_SERVER_NO_REPLY: sim_interface.c:1039 Failed to get DHCP response on interface 'management'. Marking interface dirty.
[code]....
I would like to share one problem with WLC 5508 . we added a new virtual interface on the WLC. One new SSID is associated with this interface.
We created a ACL for this interface to restrict the access via WIFI to certian services. It´s not correct that everything works fine because the change were not applied. [code]
The changes of the ACL are applied on the fly, but for reason we don´t know, the clients don´t get a DHCP IP-Address (after changing the ACL) until the Controller is rebooted.
I know this question was asked many times, but I'm still not able to finalize my configuration on 871w. LAN part works fine, but wireless clients do not get DHCP IP. here is the config:
Building configuration...
Current configuration : 2092 bytes
!
version 12.4
no service pad
service timestamps debug date time m sec
service timestamps log date time m sec
no service password-encryption
!
[ code ].....
I'd like to have LAN and WLAN clients in same 192.168.1.0 sub net.
I have successfully configured my DHCP server because I can ping it from the clients PC and my clients PC automatically grabs IP from my DHCP. How my clients can have access to internet. Here is my hardware setup: 1. I connect clients PC and one DHCP server in one unmanaged switch2. I have my Bell DSL Modem but not connected yet to one of these machines. I do not know how I can configure it yet to work with my machines.The IP I assigned started at 10.10.200.10 to 10.10.200.90How do I connect the DSL and configure so that it may give everyone access to internet?
View 1 Replies View RelatedI have 19 locations, each with 1 or more LAP1142N AP's in FlexConnect mode, AP's are primed using CAPWAP to my 5508 WLC at the datacenter. The AP's join the WLC without issue every time. I have two WLAN's, one guest and one staff, the guest network is open and obtains DHCP from a WatchGuard XTM33 firewall at each of the remote locations. The staff side is WPA2/RADIUS and DHCP is assigned from the WLC. Each AP is assigned a static IP that is not in the DHCP scope. For example: DHCP scope on the branch firewall is 192.168.1.10-250 the AP will be assigned static IP of 192.168.1.1.. The AP's are connected to a HP procurve switch that has a untagged VLAN, the firewall is using the native vlan 1 and so is the AP.
I have been running this network for over a year and it has not had a single issue until the last two weeks. Nothing on the network has changed or has been upgraded.The issue I am seeing is that clients are no longer able to connect to the AP and do not get DHCP assigned to them. I am able to get it working, if I remove the static IP from the AP, the AP will reboot, join the controller, then begin working, users can connect and DHCP is assigned from the firewall as it should. However, If the AP then reboots, the AP will join back to the controller but no clients can connect nor do they get a DHCP address. So, I then reassign a static IP to the AP again and it reboots, connects to the controller and clients then can connect and get DHCP.i've found several posts on this topic, in fact the patch of unassigning or reassigning static IP is one that I found. I am also waiting on my SmartNet to start up and will be contacting Cisco support as well.
I have a few sites using the RV042 with wireless access points and some of them have over 50 devices.In reviewing the documentation (specifically,[URL]), I came across this:Enable DHCP server: Check the box to allow the router to dynamically assign IP addresses to up to 50 connected devices. Uncheck the box if you have another DHCP server on the network or you want to configure static IP addresses for your network devices.Is this accurate? Or will the RV042 allow more than 50 devices?
View 3 Replies View RelatedI have a Cisco RV220W running the latest firmware (currently 1.0.4.17), and I have noticed that after about a week of use, wireless clients can no longer acquire IP addresses via DHCP.
I have used Network Monitor on both the DHCP server, and the WiFi client, and can see that the server is receiving the requests and sending a reply, but the client never sees the response from the server. So far the only way to resolve this is to reboot the router.