Cisco WAN :: 881 Can't To Obtain Ip From ISP Dhcp-server
Sep 14, 2011
I cant to obtain DHCP-address on WAN interface. All over hardware can (windows-based systems and Asus RT-N10), but not Cisco 881 Also i cant to obtain ip even from Asus RT-N10 with this configuration:! version 15.1 service config no service pad service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname Router ! boot-start-marker boot-end-marker ! ! ! no aaa new-model memory-size iomem 10 ip source-route ! ! ip cef no ipv6 cef ! ! crypto pki token default removal timeout 0 ! ! license udi pid CISCO881-K9 sn FCZ1523C3RR ! ! username admin privilege 15 secret 5 $1$0H8v$xx/HtPJIllcFvEWFjzI5t/ ! ! ! ! ! ! interface FastEthernet0 ! interface FastEthernet1 ! interface FastEthernet2 ! interface FastEthernet3 ! interface FastEthernet4 ip address dhcp ip broadcast-address 0.0.0.0 duplex auto speed auto ! interface Vlan1 ip address 192.168.4.1 255.255.255.0 ip broadcast-address 0.0.0.0 ! ip forward-protocol nd no ip http server no ip http secure-server ! ! logging esm config ! ! ! ! ! control-plane ! ! line con 0 exec-timeout 0 0 logging synchronous login local no modem enable line aux 0 line vty 0 4 exec-timeout 0 0 logging synchronous login local transport input all ! end After thousands experiments next configuration started to obtain ip from Asus RT-N10 , but not from ISP ! ! Last configuration change at 12:22:25 UTC Tue Sep 13 2011 by admin ! version 15.1 no service pad service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname Router ! boot-start-marker boot system flash c880data-universalk9-mz.151-3.T.bin boot-end-marker ! ! ! no aaa new-model memory-size iomem 10 ip source-route ! ! ! ip dhcp relay information trust-all ip dhcp compatibility suboption link-selection standard ! ! ip cef no ip dhcp-client broadcast-flag no ipv6 cef ! ! crypto pki token default removal timeout 0 ! ! license udi pid CISCO881-K9 sn FCZ1523C3RR ! ! username admin privilege 15 secret 5 $1$3bFL$y/cxqQLd.8cixPrtETEJ4. ! ! ! ! ! ! interface FastEthernet0 ! interface FastEthernet1 ! interface FastEthernet2 ! interface FastEthernet3 ! interface FastEthernet4 ip dhcp relay information trusted ip dhcp relay information check-reply none no ip dhcp client request tftp-server-address no ip dhcp client request netbios-nameserver no ip dhcp client request vendor-specific no ip dhcp client request static-route ip address dhcp ip broadcast-address 0.0.0.0 duplex auto speed auto ! interface Vlan1 no ip address ip broadcast-address 0.0.0.0 ! ip forward-protocol nd no ip http server no ip http secure-server ! ! logging esm config ! ! ! ! ! control-plane ! ! line con 0 exec-timeout 0 0 logging synchronous login local no modem enable line aux 0 line vty 0 4 exec-timeout 0 0 logging synchronous login local transport input all ! end ISP's hardware based on Juniper.What else must I switch of/on to start DHCP-client?!
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Mar 7, 2012
I have configurate AP1230 as DHCP server. And I have 2 vlan and SSID :
vlan 1: office use
SSID: OFFICE
vlan 11: guest use
SSID: GUEST
Now the user can login with OFFICE's ssid for obtain IP from windows server 192.168.3.4. But GUEST's ssid can't obtain IP after login.
ip subnet-zero
ip dhcp excluded-address 10.0.0.1 10.0.0.20
ip dhcp excluded-address 10.0.0.40 10.0.0.254
[Code].....
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Feb 20, 2013
2 days ago, my laptop was connected to my router and working fine. But it then randomly disconnected and haven't been able to connect back since. I am using an ethernet cable to access the internet, and have tried many ways to try and resolve the issue but nothing is working.
I have a Dell L501x (Win 7 64-bit) with the Intel Centrino 1000 BGN wifi card. I have restarted the router and modem and disconnected all devices and tried reconnecting, but to no avail. I have tried updating the drivers, system restoring and using safe mode (with network) but nothing works. The modem and router are working fine as other devices connect and access the internet, it is just my laptop that cannot.
I am sure it is not a hardware issue as the card detects all the surrounding networks. The troubleshooter only says "An administrator profile failed to obtain an IP address from the DHCP server.
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Oct 6, 2012
I have simple set-up in my network with 2 routers connected to each other, 2nd router is just kind of wireless access point and switch to extend cable sockets upstairs.I have DHCP reservation on the first router and it works perfectly. Second router has DHCP server disabled, and I have configured DHCP reservation same as the first router, but it gives random IP addressess instead of reserved. how can I configure second router to obtain MAC DHCP RESERVATION TABLE from the 1st router?
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Mar 29, 2012
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.
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Jun 17, 2011
I have an Avaya IP Phone for work. This has been tested at work and works as expected. After the IP Phone boots it's able to obtain an IP address from work. At home when I plug the IP phone into my DIR-655 router, it's unable to obtain an IP address. Other network devices are able to obtain an IP address, for example any computer or laptop. Also my wireless works with no issues expect for the IP phone. I've already done some searching and found other users with the same issue but I haven't been able to find a solution other than setting a static IP address. I'm curious why this relatively new router won't work with an IP phone. I've played with some of the router settings but it didn't make a difference. Any work around to get the DHCP to work? I'm running the latest firmware for my router: 1.35A Hardware Versions: A4.
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Apr 5, 2012
I would like to know on how can i setup my cisco 877 router at my small office. Here are the things that i need to do:
1. I need enter the internet static ip address 61.10.xx.xx/subnet mask/gateway/dns provided by my ISP.
2. I need to configure the cisco router DHCP so that the 4 computers can obtain an IP automatically. Howow can i accomplish this setup.
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Dec 15, 2011
I am struggling with the following issue. I have 6 1130 Accesspoints in lightweight mode connected to a 2106 wlan controller which runs software version 7.0.98.0. Everything seems to work fine. Clients can connect to the wifi network. However, they don't get an ip address from the dhcp server which is on the same subnet as the wlan controller. See attached screenshots for configuration. I have also tried the internal dhcp server of the wlan controller, but the same problem remains.
The logs says: Dropping primary discovery request from AP e8:b7:4x:xx:xx:xx - maximum APs joined 6/6 There are 6 AP's connected
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Apr 14, 2013
I have two ethernet cards (from same equipment) that arent acquiring IP Address after instalation of WLC 2504.I dont want (yet) to disable DHCP proxy on WLC.
*DHCP Socket Task: Apr 15 18:49:04.219: 00:0a:95:XX DHCP received op BOOTREQUEST (1) (len 556,vlan 0, port 1, encap 0xec00)
*DHCP Socket Task: Apr 15 18:49:04.219: 00:0a:95:XX DHCP dropping packet (no mscb) found - (giaddr 0.0.0.0, pktInfo->srcPort 68, op: 'BOOTREQUEST')
*DHCP Socket Task: Apr 15 18:49:07.218: 00:0a:95:XX DHCP received op BOOTREQUEST (1) (len 556,vlan 0, port 1, encap 0xec00)
*DHCP Socket Task: Apr 15 18:49:07.218: 00:0a:95:XX DHCP dropping packet (no mscb) found - (giaddr 0.0.0.0, pktInfo->srcPort 68, op: 'BOOTREQUEST')
[code].....
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Sep 29, 2011
i am facing the same problem now but am using windows 2003 server
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May 6, 2012
[code]...
I am able to obtain IP addresses through the DHCP server for my clients and I am able to browse internet on the server 2k8.Server 2008 - Share Internet through DHCP server
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Jan 17, 2013
setting up a DHCP server on a Cisco Layer 3 Switch. How would I set the pool up to issue the lowest available IP address all the time. At the moment it counts up even if a lease has expired.
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Jul 9, 2012
anyways here is my concern, we have a DHCP server in our company (HOTEL) and the Computer wont turn on, the computer is Compact Proliant Intel Inside Pentium Pro Processor OS Windows Server 2003, this Computer is so old. they been using this for 12 yrs and they didn't upgrade... now its dead.
since this Computer wont turn on, all of the computers cannot access in the internet, so for the meantime this is what I did... from the modem to router, I configure the router as a STATIC IP and I enter the IP address provided by our Internet Service Provider after that all of the computers form the hotel have internet connection.
now I'm planning to build a new PC and set up a DHCP server but I don't know how and where to start
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Feb 20, 2013
I'm trying to enable dhcp server on it. done this how to [URL] It works, but unfortunately the client takes almost 2 min to get an ip.
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May 23, 2011
I am facing an issue with setting up dhcp server on a 3750G-24PS-S,IOS : c3560-ipbasek9-mz.122-58.SE.bin,the switch configuration is below,interface Vlan100 description ***Data Segment*** ip address 192.168.102.1 255.255.255.0 no shut!ip dhcp excluded-address 198.168.102.1 198.168.102.10! ,ip dhcp pool datalan network 198.168.102.0 255.255.255.0 default-router 198.168.102.1 dns-server 192.168.40.11,!,interface GigabitEthernet0/1 switchport access vlan 100 switchport mode access spanning-tree portfast.
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Aug 16, 2012
OLD Dell computer running Windows XP Professional. Just ran a clean install and installed new drivers yesterday. After installing Service Pack 2, I began getting limited connectivity errors. Tried ipconfig/release and ipconfig/renew, but received the DHCP error.
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Jan 26, 2013
How to configure DHCP server if i have 2 vlans. I know how to configure rest of the network, just i don't know server.I use packet tracer and i attached file with my network. PC1 is on VLAN1 and PC2 is on VLAN2.I want ip addresses in vlan1 to be from 192.168.1.2 and in vlan2 from 192.168.2.2. I would like to do it just like in the designed network, without router.
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Oct 19, 2012
Can I have two asa firewall between dhcp client and dhcp server. if yes what solution i have to have to get dhcp leases. should i have to configure dhcp relay on both the asa.
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Dec 26, 2012
know any plan from Cisco to make 300 series switch to work as a DHCP server?
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Aug 16, 2011
I have a WCS that I use to manage 8 controllers (2 WiSM's totaling 4 controllers, and 4 more controllers at remote locations). All controllers connect to 3750 switches. The layer three interfaces for all V LAN's that are related to the wireless network are created on these switches. Each layer three interface has a helper address that points the devices in the sub net to the correct DHCP server.
When a wireless device requests a DHCP request I believe it gets to that server based on the relay from the layer three interface on the 3750. However, I know that the virtual interface on the controller is also requesting an address because my firewall is flooded with deny statements. The virtual interface is configured for 1.1.1.1 and so it gets blocked. I am starting to question the use of this interface considering the fact that it is getting blocked and the clients are still getting address.
Are both interfaces trying to act as DHCP relays? Could I setup the controllers to be the only relay (without using the virtual interface)?
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Dec 13, 2010
Can we Configure DHCP server in 3750 ? we have configure DHCP server in 1841 router but some reason we want remove router .
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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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Oct 18, 2007
I am working to test the PPPoE solution. The requirement is that she like to have a PPPoE server (7200), enable the DHCP pool on the router. The PPPoE client (1811) should receive the IP address through the DHCP and with subnet mask (/24) so that routing protocol can enable between the PPPoE server and client.We test with some initial configuration but not success to obtain DHCP address from the pool.
On PPPoE server router,
!
ip dhcp pool DHCP-PPP
network 192.168.254.0 255.255.255.0
default-router 192.168.254.254
[Code]...
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Apr 14, 2011
2 dhcp server on the same lan segment not thesame ip add series , how can i prevent to lease ip from another ip series
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Oct 30, 2011
I've made hotspot ad hoc and then my client try to connect my hotspot but it must setting manually...how to my client connect to my hotspot automatically not manually??? and how to install and setup dhcp server i windows 7...
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Apr 28, 2011
when we use switch as dhcp server and we want to configure a DHCP relay on other subnet that is not connected to this switch, what is the DHCP server ip address for configuration of DHCP relay? Should we use vlan1 ip?
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Aug 23, 2011
A Windows Server 2008 r2 with 2 internet ports. One (IP: 10.0.96.132) connected to company intranet and one (192.168.10.1) as DHCP server connect to several PCs (192.168.10.**) through a switch.The problem is the PCs (192.168.10.**) can ping the DHCP server (192.168.10.1) , while DHCP server (192.168.10.1) can not ping (192.168.10.**).How to configure the server so that all these PCs can access the intranet?
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Nov 2, 2011
I've been trying (in vain) to connect a USB Wireless device to be able to use it off my wireless network. I have (2) other laptops and (1) other desktop connecting to the router with no issues. For some reason, this old desktop keeps installing an Ethernet device (probably on the MB) and is automatically Configuring the IP address to that instead of the USB wireless device.I've tried uninstalling the Ethernet device but it comes right back after I do a reboot. Even when I disable it, I still can not connect with my Wireless device.
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Feb 22, 2011
i want to setup DHCP using my windows xp
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Nov 17, 2011
i did just had a rogue anti-virus infection i did a removal of it AV Security 2012
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Apr 17, 2012
My Windows xp computer can't connect to the DHCP server correctly and thus can't connect to the internet. It is connected through an Ethernet cable to a wireless router. All other computers on the same network connect fine to the router, both wired and wireless.This all started after I left my computer alone for a few hours and came back with it not coming out of idle. After shutting it off and turning it back on, it would not connect to the DHCP server.It assigned me the autoconfig address 169.254.189.73 because it couldn't connect to the DHCP server. I even tried a static IP but even that wouldn't fix it. I have tried the same ethernet cable in another computer and it worked fine so I know that it is because of my computer.I have tried renewing and releasing the connection using ipconfig in the command prompt but that did nothing. The settings are all the same as the other computers running through the same router. I have tried shutting down all the other computers and reconnecting the trouble one but again still nothing.The last thing I'm not sure about is the network adapter driver. I have reinstalled it but I'm not sure if the driver is correct. I have an NVIDEA nforce 10/100 Mbps Ethernet adapter. I attempted to reinstall but I'm not sure I selected the correct generation when I downloaded the driver installer. My computer says nothing about the generation of the adapter so I just chose the newest generation. My adapter is integrated in the motherboard.
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May 7, 2011
I have a machine with Windows Server 2003 running an Exchange Server in a office with 5 workstations attached. The server is being used for a basic outlook calendar across the various workstations, nothing major. Our current ISP provides us with a Static IP address. The party that installed and configured the server set it up to run the DHCP server on the server PC itself. As in, the machine running windows server is also running a software DHCP server for the entire network. THE SETUP: As of right now we have a wall port (internet access) with a cable running to a 8 port unmanaged netgear switch that has cables hooked up to the 5 workstations as well as the server itself. Pretty simple.THE QUESTION: How do I configure the ISP static settings on the DHCP Server portion of the Server PC? We may be getting a new ISP with a dynamic address OR a new static address. WHAT I'VE TRIED: I've tried configuring the IP address on the Server PC the way I would via the NIC adapter settings but it already has a internal IP address from the DHCP Server running on that PC so changing that was no good.
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Jul 25, 2012
How to get the details of an android phone connected to the wifi network.Even I know the IP of the device as we can see it from the phone it self how to fetch some information about the phone like its os version (2.2.x Froyo,2.3.x Gingerbread etc ),Model of phone etc.My aim is to identify an android when IP is given to me.I got some tool likeQuote:nmap,but it is not showing a full details of phone by which I can recognise it is as an android phone,is there any other tool or mechanism to identify the phone if the IP is givenI got something like "vendor class " of the dhcp protocol stack ,but how to read this data
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