Microsoft DHCP - Option 43 Setup Server

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  Hi Tom,

  Unfortunately, we are limited in what we can do to help with password lost or forgotten by Microsoft Policy, which applies to anyone who answered questions here. http://support.microsoft.com/kb/189126.  But there are a few options to try:

  You have another administrator account where you know the password that you can connect to the password changes to this account?

  First of all, make sure that you do not have the CAPS LOCK SHIFT keys or Numlock enabled - this can change what you think, you type in something else (different case or a number or a letter) and the system see what you entered as incorrect.

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  Unfortunately, if this does not work in this case the only option, we can suggest is to restore the system to factory conditions (or do a clean install). But too late for this time, next time create more than one administrator account in order to have a backup in case something like this happens again. A new installation will create a new administrator account. It allows to do some backups to avoid that from happening.

  I'm sorry, that we cannot do more to help.

  Good luck and best wishes!

• Notice of default on Microsoft update for product SQL Server 2005 Express Edition Service Pack 3 (KB955706) and the 0x2B2F error Code

  I get a failure notice when trying to make an update of Microsoft for the product SQL Server 2005 Express Edition Service Pack 3 (KB955706) and 0x2B2F error Code.  What should I do?

  Deana E Hi,.
   
  Welcome to the Microsoft Windows answers Forum community!
   
  You receive the 0x2b2f error code when you use the web sites, Windows Update or Microsoft Update to install SQL Server 2005 Service Pack 3 on a computer with MSXML6 Service Pack 2 is already installed.
   
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  http://social.msdn.Microsoft.com/forums/en-us/category/SQLServer/
   
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• Question of DHCP Option 50

  I understand that the DHCP 50 option is for the customer asked the IP address.

  I have 3 questions about this...

  1. the DHCP server on the router maintains the MAC--> IP mapping during 24 hours right?

  What happens if I ask a non assigned a different IP address in the 24 hour window? My request will be granted each time?

  What happens if I ask for an IP address not assigned different after the 24 hour window? I guess that my request will be granted every time in this case.

  2. always in the window of 24 hours, if the requested IP address is leased to another network device, but the device has long been disconnected,

  I get the requested IP address?

  2 do all versions of routers support this option?

  Depends on the implementation of the DHCP server. The RFC does not say how to handle 50 option. The DHCP server can but should not affect the requested IP address. It can completely ignore this option.

  So:

  How long the server retains the mapping? Depends on the server. It may or may not remove the mapping after the lease has expired (which I assume is the 24 hours, that you reference).

  Ask a different IP address during the valid lease? Depends on the server. The server may grant each time. Another server can refuse each time.

  I think it is more common to not to grant the request. Internally the DHCP server manages static IP mappings and pool all the same except the static IP mapping has an unlimited lease duration. As long as a request from a computer comes that already has a mapping (static or pool) he always attributes known IP address and the other does not.

  After the expiry of the lease? Depends on the server. A DHCP server keep the maps even after the expiry of the lease. The simple purpose of this is that if you have a fairly large pool that gets not exhausted you basically assignments to static IP addresses to DHCP clients. Even if a client releases the lease (because the computer is stopped) or the lease expires, he will always keep this information. Next time (for example, you turn on the computer after the weekend) it will always go to the same IP. But again, it is up to the implementation of the server. Other servers follow other policies and do differently.

  Address IP lease request? N ° never. The DHCP server must not assign an IP address that has been rented elsewhere. There is no reliable way to make sure that the DHCP server as other devices is indeed off. If a unit is stopped, it must release the DHCP lease. If it is not the case, the IP address is blocked until the lease expired. The only case that a transfer could occur is if the DHCP server has been reset and lost its DHCP lease table. In this case, the DHCP server does not know before granted leases.

  Supported? All DHCP servers must be able to receive DHCP requests include this option. It is the implementation of the DHCP server if the DHCP option is really accepted or not. Some servers may completely ignore this option.

• LWAPP AP - DHCP Option 43

  Hello

  I'm working to deploy a group of 1242AG APs with a 12-4402. I'm looking to use LWAPP and run the WC in mode layer 3 with deployed on a different subnet access points.

  I tried to assign an address (and 43 DHCP option for the IP address of management WC) via the server DHCP of Cisco IOS, but so far this has not been successful.

  I was unable to provide option DHCP 43 to the APs. Here is the configuration that I tried to use.

  Router DHCP configuration

  dhcp WLAN IP pool

  network 192.168.1.0 255.255.255.0

  Option 43 f1:07:c0:2e:a8:2e:01:2e:c8 hex (TLV = 241 7 192.168.1.200)

  .

  Can someone help me maybe?

  Jon thx.

  Try this...

  IP dhcp pool

  network

  default router

  DNS server

  the option 60 ascii 'String VCI'

  Hex option 43

  ----------------------------------------

  assuming that your TLV 192.168.1.200 management interface

  ex: option 43 f104c0a801c8 hex (without colon)

  Channels VCI-

  Cisco Aironet 1130 series = "Cisco AP c1130"

  Cisco Aironet 1240 series = "Cisco AP c1240"

  Cisco Aironet 1200 Series = "Cisco AP c1200"

• Cisco SPA with problem of DHCP Options 66

  Dear all,

  I have a problem of my phone Cisco SPA for the autodeploiement.

  If I manually enter the page configuration and paste "[- pwd - password user uid] http:///dms/def/spa$PSN.cfg" in the profile rule. Everything works perfectly.

  However, we would like to do in the provision of zero touch, I add the "[- pwd - password user uid] http:///dms/def/spa$PSN.cfg"DHCP Options 66. " The SPA phone seems impossible to get the 66 Options parameter. It shows that "/ spa$ PSN.cfg" in the rule of profiles.

  I'm sure that the DHCP server works perfectly.

  Can anyone help on this?

  Kind regards

  Desmond

  You cannot use the custom during initial deployment (zero touch) password. DHCP can be used to deliver key to the device in this way.

  Ok. What are the options you have?

  You my use of the configuration file, compiled with SPC type -target option. It encrypt the file by using the password from each device Mac so you need no password given to the device - device can calculate the password required their Mac. It provides just basic security level - insensitive user, like me, know the algorithm used for password generation so that it can calculate the password and decrypt the file.

  You can use HTTPS with mutual certificate authentication to deliver XML or SPC configuration form. All phones have the unique client certificate, then you can be sure that the request has been issued by the unit. It offers a high level of security.

  There are also a few other possibilities, but disclosed so that information on the goal you want to hit, so I can't list.

  Just note that DHCP will meet anyone, in addition, the answer may broadcast (therefore handed to anyone, even without prior request). If you deliver critical data via DHCP, you can consider them publicly available. Security resulting is without security.

• DHCP option to set the controller IP for Access Points (Airespace)

  Hello world.

  Does anyone have an idea to specify the controller using DHCP options.

  We use:

  -Controller AIR-WLC4404-100-K9

  -AP-1010-AP-5312 poinst access

  -Server dhcp DHCPd ISC 3.0.1

  Newspapers on DHCP server indicates that access points become the IP addresses, but the controller information are not "read" / "included".

  In the productive environment, controllers will be redundant.

  So far, we couldn't sucsessful with eighter of these configurations:

  Block i. using VTL:

  http://www.Cisco.com/en/us/products/HW/wireless/ps430/products_quick_start09186a00805100f5.html#wp49287

  subnet 10.50.107.0 netmask 255.255.255.0 {}

  option subnet-mask 255.255.255.0;

  routers option 10.50.107.1;

  option domain-name-servers 10.20.51.11, 10.20.51.12;

  option vendor-class-identify Airespace 1200;

  the option dhcp-client-identifier 0xf1, 8, 10.20.51.254, 10.20.51.249;

  DDNS-updates

  DDNS-rev-domainname "in - addr.arpa.";

  DDNS-domain name "xxyy.local.";

  default-lease-time 28800;

  range 10.50.107.101 10.50.107.200;

  }

  II. using the DHCP Next-Server option:

  subnet 10.50.107.0 netmask 255.255.255.0 {}

  option subnet-mask 255.255.255.0;

  routers option 10.50.107.1;

  option domain-name-servers 10.20.51.11, 10.20.51.12;

  Next-server 10.20.51.254;

  III. use of Header Information Option 43 described such in DHCP Manual:

  WLAN-apc code 60 option = text;

  ip address wlan code option 43 = controller;

  subnet 10.50.107.0 netmask 255.255.255.0 {}

  option subnet-mask 255.255.255.0;

  routers option 10.50.107.1;

  option domain-name-servers 10.20.51.11, 10.20.51.12;

  option wlan-apc "Airespace.AP1200"

  option wlan controller - 10.20.51.254;

  IV. using header to the DHCP server information:

  class "-classes of suppliers ' {}

  vendor-class-identifier option match; }

  {"Airespace.AP1200" subclass "-classes of suppliers '}

  Next-server 10.20.51.254;

  }

  Does anyone have a working (using the SAI?) configuration or advice?

  Best regards

  Jarle Steffensen

  Yes, finally got it work.

  I just followed this guide:

  http://www.Cisco.com/univercd/CC/TD/doc/product/wireless/control/C44/DEP.PDF

  and it worked the first time :)

• LWAPP AP and DHCP option 43

  Hello

  I have configured option 43 on server dhcp, restarted 1131 AP, but AP still try to resolve the CISCO-LWAPP-CONTROLLER instead of the ip provided by dhcp. How can I debug this?

  Router config:

  IP dhcp pool seg20

  F104.0a0f.64fd hexagonal option 43

  Thanx.

  A CUWN AP, through all the methods of discovery.  So it always attempts to use DNS, 43, dissemination of L3, L2 broadcast option.  Once it was discovered, then it will be unicast the join query.

  Normal/expected behavior

• The EA8500 supports DHCP Option 60/61?

  Hello

  I was wondering the EA8500 can be used with sky fiber Pro service to the United Kingdom? Obviously I would need to extract the username of the SR101/102 and then intend to use the modem Openreach VDSL2 with the EA8500 (btw brilliant router) but after some research, I understand the router needs to support DHCP option 60 & 61 in order to connect with the sky. The EA8500 does it take?

  See you soon

  psycho

  Linksys engineering has notified me that the EA8500 is not compatible DHCP Option 60/61.

  Filed a feature request in support of these DHCP Options. Lets hope it is approved and included.

• Microsoft Vista optional update - can I install driver updated listed as optional updates?

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• RV042 150 DHCP Option

  Hi people

  I have a RV042 VPN router with the latest firmware v4.2.1.02.

  This router is connected to the main site through a VPN Tunnel.

  Now, I want to configure a DHCP Option if I can put an IP phone

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• vShield Edge DHCP Options

  Hi guys,.

  I play a vCHS TPOC. I was wondering if it was possible to set any other advanced DHCP option on the edge of vshield like WINS etc?

  As far as I can see there is not, but thought I would ask.

  Concerning

  D

  It is not possible today.

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• Cannot locate the Microsoft Sysprep package on the server Lab Manager

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  Hi all

  Is it possible to configure the 156 on a Sx300 Cisco DHCP scope option? Its for Shoretel IPT... I noticed that the option is not available through the user interface. But I tried the other day on a switch with the latest firmware via the CLI and it almost worked but I couldn't switch to accept the exact string that I needed... For example below (the Cisco classic):

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  Thanks in advance

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  Hi Matthew, the options supported on the DHCP server are as follows:

  1,3,4,6, 12, 15, 44, 46, 50, 51, 53. 54, 55, 56, 58, 59 and 61.

  -Tom
  Please mark replied messages useful

• Microsoft cannot activate my Windows Server 2003 Standard Edition 32 bits, tried all the possibilities but always in vain.

  I called the customer service. I called the support to businesses. whatever i can I I did but I don't get any solution, right away that these people say that support is not provided for windows 2003 as its being obsolete.

  My question is whether the product activation. I bought the license for windows 2003 std ed. At least I need solution for activation, it should be default but nobody is bothered.

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  Hello

  We do not work for Microsoft; We are mainly volunteers here.

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