Cisco :: How To Delete Dhcp Lease On WLC 5508
Mar 28, 2011delete a lease from a DHCP scope on a WLC 5508? I'm using that unit as the dhcp server, no relay. I am unable to find anything either through the web or cli.
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IP Address Lease Denied By DHCP Server?
May 5, 2013my Laptop is about nine years old, HP Pavillion Pentium 4. I run Windows XP Home Edition Version 2002 SP3. I use a broadband card from Verizon that I just put in my USB (no router, etc) I'm getting a System Error Source DHCP Event ID 1002. When this happens, my computer, I believe, is going into sleep mode and I have to reboot the system. When I turn it back on and go back on the internet, all my websites that I was in are still there. The error says: The IP address lease 10.170.223.48 for the Network Card with Network address 2c3068c16ED1 has been denied by the DHCP Server 10.173.229.86 (The DHCP Server sent a DHCPNACK message)The DHCP Server Service did not extend the lease on your computer's IP address, so your computer temporarily lost its connection with the Network. I tried the ipconfig /release and ipconfig /renew. I tried going in services.msc and going under DHCP and keeping it automatic but stopping it. I called Verizon and I believe he refreshed my Network settings (I think I knew more about the topic than he did) He said it was my computer, whatever. I just tried the static IP but it didn't seem to take. I restarted and it jumped back to automatic. My last guess is it's something to do with the time frame of when it automatically obtains the address and when it expires. When I do the ipconfig /all it shows only a two hour time frame before it expires. Today I noticed that my computer shut down/sleepmode at the exact time the ipaddress was obtained. So, is there a way to increase this time between obtaining and expiring?
View 7 Replies View RelatedCisco WAN :: ASA 5505 - DSL PPPoE / DHCP Lease Drops
Jan 25, 2011I've been having this issue for about 3 months now, off and on, never seemed to be predictable but started happening more and more, which prompted me to look into it.
Currently, the DSL Modem is configured in bridge mode with the ASA handling PPPoE. The WAN address is being assigned via DHCP. The ASA is running 8.2(1). The WAN interface will drop it's DHCP lease and will not renew it without power cycling the DSL modem. I did a little bit of googling and found mention of setting "dhcp-client client-id interface outside", specifically this was an issue pre 7.2(22), but doesn't seem to affect my situation. Originally, I had the MTU on the outside interface configured as 1500, changing it to 1492 has not resolved my issue either.
I've enabled PPPoE and DHCPC debugging and posted the results below when the event occurs, I'm thinking this is moreso a PPPoE issue than it is a DHCP/DHCP Lease issue as I am not seeing any debug messages from DHCPC.
Code...
Cisco Wireless :: WAP4410N Does Not Renew DHCP Lease
Jun 23, 2010I have several Cisco WAP4410N access points. They are configured to automatically obtain an IP address through DHCP. This works fine, but I've discovered when the DHCP lease expires, the access point doesn't renew it. It continues to use the same IP address but does not renew the lease. If I reboot the access point, it will renew the lease again.Is this a known issue with the WAP4410N? Is there any way to work around this, other than setting a static IP address or rebooting regularly?
View 9 Replies View RelatedCisco Switching/Routing :: How To View DHCP Lease From ISP On 2811
Sep 26, 2012I have a remote site on a 2811 IOS 12.4(15). Interface FA 0/0 faces the ISP and is set for DHCP. What command can I run to see all of the information given out with the IP lease from the ISP? I need to find out what the IP address of the DNS servers are.
View 3 Replies View RelatedCisco Routers :: SA520 DHCP Lease Clients Removal
Nov 26, 2012Is there a way on the security appliance SA520 to remove someone from the DHCP lease client manually rather than setting the DHCP lease time to expire in less time like 4 hours or 2 hours. I was able to do this on other routers by highlighting the connected device and click remove. If not any recommendations on how to handle the device that are attached via DHCP and the person is no longer here, but the lease time is not up. I have set DHCP lease time to 4 hours.
View 1 Replies View RelatedCisco Wireless :: Clear DHCP Lease In WLC Internal Server WLC 6.0.199
Jan 12, 2012How to clear dhcp lease in WLC 6.0.199 from the IP leased from internal server?
View 1 Replies View RelatedCisco VPN :: 2951 Unable To Lease DHCP Address To Remote Clients
Feb 12, 2013Im facing with some DHCP lease issue and its like this,Our Cisco 2951 edge router is configured with local dhcp pool for a set of remote users when they connect through Cisco VPN which was working fine until we planned to change it to a Windows box that is configured for DHCP.The basic idea now is to relay the DHCP requests that are coming from the remote clients through Cisco VPN to the DHCP Windows server. So we added the scope on the server and changed the client config on the router as follows (highlighted is the dhcp relay config). [code]
View 1 Replies View RelatedCisco Routers :: RVS4000 Is Not Renewing DHCP Lease In Auto Mode
Jan 25, 2012my RVS4000 is not renewing DHCP lease in Auto mode. Connection lost after 24 hours.
WAN Internet interface is physically connected to cable modem - Motorola SBV6120E. Setup as DHCP server. Cisco RVS4000 is obtaining DHCP public IP without any issue, the problem is that the connection drop every 24 hours and I need to release/renew DHCP each day to be able to communicate after 24 hours. After I loose connection I need to release DHCP, the WAN interface goes down and I need to renew DHCP then. I receive the same IP address and connection is againg UP and working.
tried to load new firmware and also setup the router with default configuration, but without any change. as there is no auto-reboot function, it is really annoying to log into managment interface each day. I also loose remote access after 24 hours, so I am not able to access the rotuer from outside. My local provider do not support static public IP on WAN, therefore I have to use DHCP.
Cisco Wireless :: Clients Timeout On DHCP Lease With Aironet 1141
Aug 17, 2011I'm setting up a Cisco Aironet 1141 (standalone mode, AP) to handle wireless traffic in the office. It gives out 2 mbssids, one of which authenticates domain users through a RADIUS server and places them in an appropriate VLAN (RADIUS options 64, 65, and 81). The other is a guest ssid that uses WPA-PSK and places users in the restricted guest VLAN. Physically, the AP is connected to a 3750 PoE Catalyst, to which RADIUS and DHCP servers are also connected. AP, SSIDs, RADIUS and EAP authentication all work. The configuration given below is a working configuration. People do get authenticated and do get placed in the appropriate vlan. The problem is that, once authenticated, the "Obtaining IP Address" phase on the client hangs and most clients timeout without getting an IP address. Given that the DHCP server is on the same switch and a test simple ASUS Wi-Fi IP gives out the same scenario (except the multiple VLAN) at the speed of light, I don't think that it's a problem with the network connections between clients and the DHCP server. After reading some topics here, I realized that probably other communication will be extremely slow, as well, but haven't tested that for sure. Clients are all non-Cisco - smartphones, notebooks, etc. Most of them are 802.11G, not N.
View 4 Replies View RelatedLinksys Wired Router :: BEFSR41 Can't Acquire DHCP Lease
Aug 9, 2012a couple days ago my BEFSR41 started making trouble, and so far I have not been able to get it working properly again. When I hook up my laptop directly to the cable modem everything works fine, and I get an IP address via DHCP. When I connect through the router, though, the router status shows 0.0.0.0 for all DNS, gateway, etc. addresses, and even pressing DHCP Release/Renew doesn't change that.Also, in the log I see these messages:
2012-08-08 20:30:41 warning DHCP RENEW WARNING - Field invalid in response
2012-08-08 08:30:52 notice TLV-11 - unrecognized OID
Since I can connect to the cable modem directly, it seems the cable modem is not at fault.My overall setup is:
- BEFCMU10 cable modem
- BEFSR41 (not sure which version, but I believe it's a 4.x)
- WAP54G
Could it be that my provider (Cox Communications) has changed some configuration in their DHCP server, and my laptop (MacBook Pro) can handle it, but the router cannot?
D-Link DIR-655 :: Impossible To Change Dhcp Lease Time On DSL-320B Modem
Apr 1, 2011I use an adsl router DSL-320B to connect my Linux server (Fedora 12) to the web.I noticed in my logs that it was renewing its ip about every 30s.
View 1 Replies View RelatedLinksys Wireless Router :: How To Change Dhcp Lease Time On Wrt120n
Sep 25, 2011i cant seem to change my dhcp lease time even though i change my Client Lease Time to 1 day.
Firmware Version:v1.0.06 build 001 Apr 29 2011 11:08:40Boot Code Version:v0.03Firmware Verification:Current Time:Sun, 25 Sep 2011 10:15:32 PMInternet MAC Address:Host Name: Domain Name:
Linksys Wireless Router :: E4200 - Static IP Lease From DHCP Server?
Jul 8, 2011I just bought an e4200. I was using a LinkSys WRT54GS running DD-WRT alternative firmware.
One feature that I really liked in DD-WRT was the ability to assign static IP leases from the DHCP server. I liked having all of my devices running with a predictable, known IP address on my network. I have a Home Theater PC, and various controller applications that run on iPhones, etc. - some pretty homebrewed. Configuring the firewalls, etc. was much easier with IP address based controls.
Is there a way to achieve the same within the e4200's stock firmware?
Protocols / Routing :: Can't Find DHCP Lease Option In Nano-station Settings
Jan 25, 2013I own a Nanostation5 Loco, and I have a router behind it.I would like to add a DHCP Lease to that router and do a port forward to the router.I can not find the DHCP Lease option in Nanostation settings, but if I choose to see DHCP Leases in "Extra info" on main page I can see some MAC and IP addresses there.When it comes to port forwarding, I fill the form slots with info, and when I press OK to save it a pop-up comes saying "Please fill out this field", a field for another forward rule.
View 3 Replies View RelatedLinksys Wireless Router :: E2500 Fails To Set DHCP Lease Time From Upstream
Jun 11, 2012we finally got my Cisco refurbished E2500 configured and working downstream from a UVerse 3801HGV box. We had to change the default IP address of the 3801 because it conflicted with the E2500's default. The E2500 is set up to get its Internet IP address using DHCP from the 3801. This is working fine for normal web browsing, etc. However, anything that requires extended connections (downloads, streaming, etc) freezes after a couple of minutes, forcing me to refresh the action to get it started again. Extremely annoying to say the least.
I'm pretty sure that I've tracked it down to the E2500's configuration of the 3801's DHCP allocation. For some reason, the E2500 wants to set the DHCP Lease Time for the 3801's assigned IP address to 10 minutes regardless of the upstream settings from the 3801. The 3801's default is 24 Hours which I've changed to 168Hours (7 days), but the E2500 stays stuck at 10 Minutes. Specifically, I'm referring to the setting displayed on the E2500 under Status>Router>Internet Connection IPV4>DHCP Lease Time.
Linksys Wired Router :: WRT54G Maximum Value For DHCP Client Lease Time?
Jun 26, 2011On the BEFSR41 v1 series and WRT54G series, what is the maximum value for the DHCP "Client Lease Time (in minutes)?" It seems that 2^16 -1 (65535) minutes is the max. This is about 45 days. has the max value changed with newer versions of these devices?
View 1 Replies View RelatedLinksys Wireless Router :: WRT310N V1 DHCP Client Fails To Renew Lease
Apr 28, 2013I have a Linksys WRT310N v1 with firmware v1.0.10 build 002Jul 19, 2010 My router fails to renew it's DHCP lease from my cable provider, causing internet access to drop. I can still access my cable modem at 192.168.100.1, but I must do a "IP Address Release" then "IP Address Renew" to get back internet access. The router works fine otherwise.
View 6 Replies View RelatedLinksys Wireless Router :: EA6500 - Change DHCP Client Lease Time From 1440 To 480 Minutes
Apr 2, 2013I'm trying to change the DHCP Client Lease Time from 1440 minutes to 480 minutes. When I try to apply the new settings, I'm getting a message that says "Invalid Characters" and it won't stick. I've tried this in three different up-to-date browsers (ie10, Chrome and Firefox). Also, I'm connecting locally through LAN and I have the latest EA6500 Firmware: 2.1.39.145204
View 2 Replies View RelatedCisco Routers :: RV180W With 1.0.2.6 Firmware - Static DHCP Have No Buttons To Add New Static Lease
Mar 12, 2013Today I installed the 1.0.2.6 Firmware on a RV180W. I only have now two problems regarding the Static DHCP support in the GUI.
1. Via the Networking > LAN (Local Network) > Static DHCP I have no buttons to Add a new static Lease.
2. Via the Networking > LAN (Local Network) > DHCP Lease Clients I can thick a Lease and click on Make Static IP. The result is an error: Operation failed.
Cisco Wireless :: DHCP On WLC 5508 7.4.100.0 With HA
Jun 11, 2013We've encountered problem from the last few days with DHCP on certain SSID's. We have a wireless network with 13 SSID's being managed by a WLC 5508 pair configured as high availability (52 AIR-CAP3502I). Yesterday we encountered an issue with DHCP on a few of the SSID's but not all, and as a last resort a reboot of the controller fixed the problem. Statically assigning addressing allows for traffic to traverse the network out to the web and back so I don't think it's a VLAN configuration issue on the wired side. It's worth mentioning however that the controllers are configured for a LAG to HP switches. DHCP is being handled by an external windows DHCP server and the primary server address points to the gateway which has a relay configuration pointing to the windows server on the other side of it. Again, rebooting the controller fixed the problem and the web traffic traverses fine if statically assigning addressing.
View 1 Replies View RelatedCisco :: 5508 / C6509 - Using WLC For DHCP For One SSID?
May 17, 2011We have a network of multiple WLCs: 5508, 4402, WISMs in two C6509 all running version 7 software. We have about a dozen SSIDs and we need to provide DHCP to the one public SSID (which like the other SSIDs span across all controllers) and to do so we thought of using a spare router, Linux workstation or DHCP server on the controllers. We are not sure if using the controllers is an option since we have multiple controllers. Is there a way to setup DHCP on a WLC and tell the others to use that WLC for DHCP for the one SSID?
View 3 Replies View RelatedCisco Wireless :: WLC 5508 Internal DHCP
Aug 22, 2011The 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.
Cisco Wireless :: 5508 - WLC And Remote DHCP
Sep 16, 2012I am having trouble getting DHCP working for a site connected using Flex Connect. Here is my setup. I have a single 5508 Controller at one site using the 10.3.0.0 network. All AP's at that site are in local mode and use the local DHCP server, 10.3.0.2. Everything works fine there. Each site uses a different SSID as well.
At my second site, 10.4.0.0, all AP's there connect back to the controller at the site above and are in Flex Connect mode. The AP's work fine and the clients work fine there but they get an IP address on teh 10.3.0.0 instead of the 10.4.0.0 network. If i setup the SSID at this site to override the DHCP server settings and tell it to use 10.4.0.2, which is our local DHCP server, the clients don't get an address at all.Is this simply a matter of setting an IP Helper address on the router where the WLC is located or is there more to it than that?
Cisco Wireless :: WLC 5508 - Second DHCP Server For Second SSID?
Apr 22, 2012I have Internal DHCP Server configured on the Cisco WLC 5508 and all is working fine. DHCP Range is 192.168.1.100 to 192.168.1.245. Now I created another SSID but I want clients connecting to this SSID get specific IP's or from a specific range. WLC has no option to bind a DHCP pool to a specific IP so what I did I checked the option to "Override DHCP" and added the IP of my firewall WLC is connected to and setup a DHCP Pool on that firewall as 192.168.1.89 to 192.168.1.94 (192.168.1.88/29).
Client can connect to the second SSID but can't grab and IP address, what am I missing ?
Cisco :: WLC 5508 DHCP - How To Add Wireless Bridge WET 200 Into Network
Dec 15, 2011At customer site we have a wireless lan installed with wireless lan controller 5508. This works fine but the customer wants to add wireless bridge WET200 into the network. The problem is that the bridge seems to authenticate and associates with the LWAPP but does not get an ip-address.
View 5 Replies View RelatedCisco Wireless :: 5508 / Clarification On DHCP Server For WLC?
Apr 10, 2013Recently I came across a wireless design whcih I ws not able to understand.The design is:
1. Two wireless LAN Controllers 5508, each with 25 AP license. AP load (5APs per Contorller) shared between the WLCs and congured with Backup Controller option.
2. The design has a Data Center Switch 3560x series, on which the two WLCs, Cisco Prime Infrastructure and Cisco MSE were connected. I've attached the design here.
3. The Data Center Switch is configured with DHCP pool for the wireless clients. The IP Address of the Data Center Switch is : 10.xx.xx.2 and Default Gateway is: 10.xx.xx.1
4. On the WLC, the Management Interface is configured with the IP Address: 10.xx.xx.21 for Controller 1 adnd 10.xx.xx.22 for Controller 2. But, their DHCP Server is configured with IP Address: 10.xx.xx.1 but not with 10.xx.xx.2 .
This means, all the DHCP requests are pointing towards the Gateway of the Data Center Switch.Is this the correct configuration?I have seen the Wireless Clients getting the IPs allocated from the DHCP Pool, even though the Management Interface's DHCP server configured with Gateway IP address 10.xx.xx.1 .
The DHCP configuration for the Data Center Switch is:
ip dhcp pool xxxxxx
network 10.164.220.0 255.255.254.0
default-router 10.164.220.1
The Management Interface configuration on the WLC is:
Interface Configuration
Interface Name................................... management
MAC Address...................................... 2c:54:2d:72:b5:40
IP Address....................................... 10.164.220.21
IP Netmask....................................... 255.255.254.0
IP Gateway....................................... 10.164.220.1
External NAT IP State............................ Disabled
[code]....
Cisco Wireless :: Multiple DHCP Pools On 5508 WLC?
Nov 8, 2012I am trying to come up with a wireless solution for a campus deployment. The campus has ten buildings currently using Autonomous APs and are currently converting to Dual 5508 Controller model.
I would like to have a separate AP Mgmt subnet in each building, so I will configure an ip helper on the SVI on this vlan to:
Option1 - Point to the Internet Router configured with DHCP Option 43 with the controller IP addresses
Option 2 - Point to the Wireless LAN Controller itself.
Problem with Option 1 is that the Internet Router will now have to connect directly to the COE network to be able to route back to the AP mgmt subnets. So I would emply a VRF here to keep the separation.
Problem with option 2 is that there appears to only be one DHCP scope allowed on the controller. So this would mean a flat mgmt network across all buildings which I am trying to avoid. I know that after the AP joins the controller, I could change the IP and change the vlan on the port but this is not very neat.
So question is:
Is there a way of getting multiple DHCP pools on the controller?
Cisco :: WLC 5508 / Failed To Get DHCP Response On Interface
Jul 10, 2012i have WLC 5508 showing the below Logs , which prevent the users from connecting to the SSIDs , also its disconnecting the associted users DHCP Socket Task: Jul 11 09:54:08.992: %SIM-3-DHCP_SERVER_NO_REPLY: sim_interface.c:1039 Failed to get DHCP response on interface 'interface-02'. Marking interface dirty.*mmListen: Jul 11 09:54:08.638: %MM-3-INVALID_PKT_RECVD: mm_listen.c:7671 Received an invalid packet from 10.21.1.25. Source member:0.0.0.0. source member unknown.it shows 3 to 4 times durring 1 hour ,
View 2 Replies View RelatedCisco :: WLC 5508 - Clients Can't Obtain IP Address Via DHCP
Mar 29, 2012I 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.
Cisco :: WLC 5508 Mobility Groups And Internal DHCP
May 6, 2012How do Mobility Groups work with internal DHCP scopes on a WLC 5508?We have a WLC 5508 with two internal DHCP scopes which redirect to captive portals for authentication. I am looking at putting in a second WLC in a mobility group setup to provide some WLC redundancy. The LWAPs will be setup so that every second AP is on the has the second WLC as its primary controller. If the primary WLC fails we want the secondary to be able to take over and issue IP's from the internal scope. How do you set this up with a Mobility group so the second WLC does not act as a rouge DHCP server while the primary WLC is still active?
View 6 Replies View RelatedCisco Wireless :: 5508 WLC Not Releasing DHCP Addresses?
May 1, 2013Have a WLC 5508 running 7.0.230 with internal DHCP server. Timeout is 3600 seconds. The IP addresses never seem to be released. The controller will show 70 clients but 254 addresses will be assigned.
View 2 Replies View RelatedCisco Wireless :: 5508 - Internal DHCP / Two SSID?
Jun 28, 2012We 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
