Dhcp сбой настройки отработки отказа ошибка 20010

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Windows Server 2012 позволяет довольно просто организовать отказоустойчивую конфигурацию из двух DHCP серверов. Выбираем в контекстном меню протокола или конкретной области «Configure Failover…», указываем тип конфигурации (балансировка нагрузки или режим горячей замены) и настраиваем соответствующие параметры (период синхронизации базы, процент обслуживаемых клиентов и т.д.). После этого все настройки первого сервера (области, параметры) автоматически переезжают на второй сервер.

Но, как всегда, есть нюансы.

В моём случае это вылилось в появление ошибки

Error: 20010. The specified option does not exist.

Причина оказалась в том, что для некоторых областей были созданы кастомные параметры (для телефонии). А как выяснилось, параметры, созданные вручную, сервер не может воссоздать автоматически на партнёре. Прописать на областях может, а создать — нет.

Решение — зайти в «Set Predefined Options…» на втором сервере и воссоздать вручную все кастомные параметры, прописанные на первом сервере. Если создавали их не вы, то отличить кастомные параметры от встроенных поможет кнопка «Delete», которая становится активной только в случае выбора параметра, созданного вручную (см второй скриншот). В моём случае, помимо параметров, пришлось прописать ещё и дополнительный Vendor Class. После чего всё успешно отреплицировалось и заработало.

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  • Trying to setup DHCP failover between two 2012 R2 servers. Each time I try, I get Error 20010. I saw a hotfix for 2012 KB2756872, but that would not even install. Any ideas. It was migrated from a 2003 server using netsh


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    • Marked as answer by
      Daniel JiSun
      Tuesday, December 24, 2013 6:42 AM

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    • Marked as answer by
      Daniel JiSun
      Tuesday, December 24, 2013 6:42 AM
  • Hi,

    I’ve got the same Problem for some of my scopes (Error 20010 The specified Option does not exist). 21 scopes did just fine, but 2 scopes show Error 20010. The scopes are DHCP only and the Options in those scopes do exist in other scopes that I set up for
    Failover as well. I’ve tried for 2 days now, but nothing worked so far.

    I tried the following (all starting with a new 2nd DHCP)

    1) Importing the config from the 1st DHCP, then deleting all scopes on the 2nd before configuring Failover, as suggested in the blog Daniel mentioned.

    2) Importing only the Server Settings and Options before configuring Failover.

    3) Deleting all scope options on source scope before configuring failover

    Is there any way to get to the core of the error message and identify the options that prevent the configuration of failover?

    Both Servers are virtual 2012 R2 DCs (Hyper-V) of the same Domain on the same site and in the same subnet.

  • I am having the same problem- went through and manually created the server options, also deleted them and ran a report of those options from my would-be-master DHCP server. Still get the «option doesn’t exist» error.  Couldn’t they have a
    log somewhere PLEASE so I can find what this option is? wasted hours on this so far.  I did do an import of a W2003 DHCP database when I migrated the new «DHCP Server1» a while back- I have a feeling there is some hidden or corrupted option
    in there it isn’t reading correctly.  Or perhaps the database i migrated is still in some 2003 format and needs tables to be updated to 2012 R2-proper?

    Let’s go Microsoft- give us a way to get more diagnostics on this!!!!

    • Edited by
      Jason Lehr
      Thursday, July 31, 2014 12:58 PM
      added pertinent info

  • I think I finally found a workaround to this problem:

    First, I checked that all custom Options were present on the 2nd Server.

    Then I deactivated these options on the source DHCP. Now the configuring failover process worked just fine.

    As a last step I reactivated the options on both servers.

    • Proposed as answer by
      MRanderath
      Tuesday, September 9, 2014 9:31 AM
    • Edited by
      MRanderath
      Tuesday, September 9, 2014 9:41 AM

  • Pls i really need help here… i have set up windows server 2012r2, install DHCP, DNS, ADCS, ADDS and REMOTE ACCESS.
    I have also set up the REMOTE ACCESS with VPN using DOMAIN NAME pointing to PUBLIC IP given by MY ISP in my domain service host. EG (xyz.biz to 187.234.76.167).. I HAVE forward PORT on my mikrotic router to ports 80: and 443: .. pointing to the internal static
    IP of the server.. i have no error on the remote access configuration page … but i cant access my server when i tried using … (REMOTE.XYZ.BIZ) on another system … and also i get error connecting thru vpn .. HELP HELP I WANT TO CRY…

  • Pls i really need help here… i have set up windows server 2012r2, install DHCP, DNS, ADCS, ADDS and REMOTE ACCESS.
    I have also set up the REMOTE ACCESS with VPN using DOMAIN NAME pointing to PUBLIC IP given by MY ISP in my domain service host. EG (xyz.biz to 187.234.76.167).. I HAVE forward PORT on my mikrotic router to ports 80: and 443: .. pointing to the internal static
    IP of the server.. i have no error on the remote access configuration page … but i cant access my server when i tried using … (REMOTE.XYZ.BIZ) on another system … and also i get error connecting thru vpn .. HELP HELP I WANT TO CRY…

    • Proposed as answer by
      scshort33
      Saturday, January 24, 2015 3:59 PM
    • Unproposed as answer by
      scshort33
      Saturday, January 24, 2015 3:59 PM
    • Proposed as answer by
      scshort33
      Saturday, January 24, 2015 3:59 PM
    • Unproposed as answer by
      scshort33
      Saturday, January 24, 2015 3:59 PM

  • Pls i really need help here… i have set up windows server 2012r2, install DHCP, DNS, ADCS, ADDS and REMOTE ACCESS.
    I have also set up the REMOTE ACCESS with VPN using DOMAIN NAME pointing to PUBLIC IP given by MY ISP in my domain service host. EG (xyz.biz to 187.234.76.167).. I HAVE forward PORT on my mikrotic router to ports 80: and 443: .. pointing to the internal static
    IP of the server.. i have no error on the remote access configuration page … but i cant access my server when i tried using … (REMOTE.XYZ.BIZ) on another system … and also i get error connecting thru vpn .. HELP HELP I WANT TO CRY…

    If you look at the Scope Options section on the scope you are trying to configure for the failover you will notice that there have been some custom Scope Option values configured.  The custom option fields must be created on the destination failover
    server to eliminate this error.  You can recreate the custom scope options by following the below instructions.

    Open DHCP.
    In the console tree, click the applicable DHCP server.
    On the Action menu, click Set Predefined Options.
    In Predefined Options and Values, click Add.
    In Option Type, type the required information to define the new option, and then click OK.

    After you create the custom option fields, go to the scope on the source failover server and right-click and select Replicate Scope.

    Hope this helps.

    • Proposed as answer by
      _JeB_
      Monday, February 16, 2015 10:49 AM
    • Unproposed as answer by
      _JeB_
      Monday, February 16, 2015 10:49 AM

  • I confirm this answer:

    When configuring Failover, you need to endure that all custom options created on your local server are also manually recreated on remote server, even if not used. Otherwise you’ll get error 20010.

    • Edited by
      _JeB_
      Monday, February 16, 2015 10:53 AM
      Confirmed answer
    • Proposed as answer by
      jAkEkInG
      Saturday, December 19, 2015 12:30 AM

  • I know I’m late to the party but I’d like to offer some insight, since everyone here has been SO SO helpful to me.  Yes you have to make sure that ALL of your custom settings from the primary DHCP server are also mirrored on the other server.  
    Those customizations could be vast and many.  The more customizations you try to replicate, the more prone to human error you will be.

    The easier way is to wait until after hours, when no one needs DHCP. Backup the DHCP settings from the primary server by right-clicking the server name under the DHCP console, and select backup.

    Copy the backed up folder to the secondary server. Restore from that backup. Then DELETE all of the scopes, on this secondary server.  (Remember for failover to work, the secondary server cannot have the same scopes. you don’t want the scopes, you
    just want an error-proof way of copying the custom options over.
    )  Then you can continue creating the failover relationship. It worked for me just now. :)

    • Proposed as answer by
      SMCZ
      Monday, January 11, 2016 1:48 PM

  • I know I’m late to the party but I’d like to offer some insight, since everyone here has been SO SO helpful to me.  Yes you have to make sure that ALL of your custom settings from the primary DHCP server are also mirrored on the other server.  
    Those customizations could be vast and many.  The more customizations you try to replicate, the more prone to human error you will be.

    The easier way is to wait until after hours, when no one needs DHCP. Backup the DHCP settings from the primary server by right-clicking the server name under the DHCP console, and select backup.

    Copy the backed up folder to the secondary server. Restore from that backup. Then DELETE all of the scopes, on this secondary server.  (Remember for failover to work, the secondary server cannot have the same scopes. you don’t want the scopes, you
    just want an error-proof way of copying the custom options over.
    )  Then you can continue creating the failover relationship. It worked for me just now. :)

    That’s work for me, with migration DHCP from 2003 to 2012.

    Thank you!

  • I have the same problem and wish I could kick the programmer ita who put this error message.

    WTH doesn’t the error include the name of the specified option?

    I can easily clone a dhcp server manually by:

    SET myNetworkDrive=\…

    netsh dhcp server \127.0.0.1 dump > %myNetworkDrive%dhcpDump_source.txt

    and then on the destination

    netsh exec %myNetworkDrive%dhcpDump_source.txt

    So why can’t DHCP failover do it?

    • Edited by
      mandango
      Wednesday, June 29, 2016 10:37 AM

  • The problema are the options in the scope. Just delete the options and failover creation will success.

    After that recreate the option in the both DHCP Servers manualy.

    Regards.

    • Proposed as answer by
      Dan Dziubanski
      Wednesday, December 13, 2017 6:26 PM

  • This is correct, we just had this issue this morning, we created some scopes option for telephony. Which stopped the sync. We just added the options to the scope, and everything synced up.

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  • Remove From My Forums
  • Вопрос

  • Trying to setup DHCP failover between two 2012 R2 servers. Each time I try, I get Error 20010. I saw a hotfix for 2012 KB2756872, but that would not even install. Any ideas. It was migrated from a 2003 server using netsh


    MCITP Exchange 2010 | MCTS Exchange 2007 | MCITP Lync Server 2010 | MCTS Windows 2008 | MCSE 2003

Ответы

    • Помечено в качестве ответа
      Daniel JiSun
      24 декабря 2013 г. 6:42

Все ответы

  • http://translate.google.ru/translate?sl=ru&tl=en&js=n&prev=_t&hl=ru&ie=UTF-8&u=http%3A%2F%2Fwww.bazedy.ru%2Fblogs%2Fkabal%2Fmigraciya-dhcp-s-windows-server-2003-r2-na-windows-server-2012-ili-2008

    • Помечено в качестве ответа
      Daniel JiSun
      24 декабря 2013 г. 6:42
  • Hi,

    I’ve got the same Problem for some of my scopes (Error 20010 The specified Option does not exist). 21 scopes did just fine, but 2 scopes show Error 20010. The scopes are DHCP only and the Options in those scopes do exist in other scopes that I set up for
    Failover as well. I’ve tried for 2 days now, but nothing worked so far.

    I tried the following (all starting with a new 2nd DHCP)

    1) Importing the config from the 1st DHCP, then deleting all scopes on the 2nd before configuring Failover, as suggested in the blog Daniel mentioned.

    2) Importing only the Server Settings and Options before configuring Failover.

    3) Deleting all scope options on source scope before configuring failover

    Is there any way to get to the core of the error message and identify the options that prevent the configuration of failover?

    Both Servers are virtual 2012 R2 DCs (Hyper-V) of the same Domain on the same site and in the same subnet.

  • I am having the same problem- went through and manually created the server options, also deleted them and ran a report of those options from my would-be-master DHCP server. Still get the «option doesn’t exist» error.  Couldn’t they have a
    log somewhere PLEASE so I can find what this option is? wasted hours on this so far.  I did do an import of a W2003 DHCP database when I migrated the new «DHCP Server1» a while back- I have a feeling there is some hidden or corrupted option
    in there it isn’t reading correctly.  Or perhaps the database i migrated is still in some 2003 format and needs tables to be updated to 2012 R2-proper?

    Let’s go Microsoft- give us a way to get more diagnostics on this!!!!

    • Изменено
      Jason Lehr
      31 июля 2014 г. 12:58
      added pertinent info

  • I think I finally found a workaround to this problem:

    First, I checked that all custom Options were present on the 2nd Server.

    Then I deactivated these options on the source DHCP. Now the configuring failover process worked just fine.

    As a last step I reactivated the options on both servers.

    • Предложено в качестве ответа
      MRanderath
      9 сентября 2014 г. 9:31
    • Изменено
      MRanderath
      9 сентября 2014 г. 9:41

  • Pls i really need help here… i have set up windows server 2012r2, install DHCP, DNS, ADCS, ADDS and REMOTE ACCESS.
    I have also set up the REMOTE ACCESS with VPN using DOMAIN NAME pointing to PUBLIC IP given by MY ISP in my domain service host. EG (xyz.biz to 187.234.76.167).. I HAVE forward PORT on my mikrotic router to ports 80: and 443: .. pointing to the internal static
    IP of the server.. i have no error on the remote access configuration page … but i cant access my server when i tried using … (REMOTE.XYZ.BIZ) on another system … and also i get error connecting thru vpn .. HELP HELP I WANT TO CRY…

  • Pls i really need help here… i have set up windows server 2012r2, install DHCP, DNS, ADCS, ADDS and REMOTE ACCESS.
    I have also set up the REMOTE ACCESS with VPN using DOMAIN NAME pointing to PUBLIC IP given by MY ISP in my domain service host. EG (xyz.biz to 187.234.76.167).. I HAVE forward PORT on my mikrotic router to ports 80: and 443: .. pointing to the internal static
    IP of the server.. i have no error on the remote access configuration page … but i cant access my server when i tried using … (REMOTE.XYZ.BIZ) on another system … and also i get error connecting thru vpn .. HELP HELP I WANT TO CRY…

    • Предложено в качестве ответа
      scshort33
      24 января 2015 г. 15:59
    • Отменено предложение в качестве ответа
      scshort33
      24 января 2015 г. 15:59
    • Предложено в качестве ответа
      scshort33
      24 января 2015 г. 15:59
    • Отменено предложение в качестве ответа
      scshort33
      24 января 2015 г. 15:59

  • Pls i really need help here… i have set up windows server 2012r2, install DHCP, DNS, ADCS, ADDS and REMOTE ACCESS.
    I have also set up the REMOTE ACCESS with VPN using DOMAIN NAME pointing to PUBLIC IP given by MY ISP in my domain service host. EG (xyz.biz to 187.234.76.167).. I HAVE forward PORT on my mikrotic router to ports 80: and 443: .. pointing to the internal static
    IP of the server.. i have no error on the remote access configuration page … but i cant access my server when i tried using … (REMOTE.XYZ.BIZ) on another system … and also i get error connecting thru vpn .. HELP HELP I WANT TO CRY…

    If you look at the Scope Options section on the scope you are trying to configure for the failover you will notice that there have been some custom Scope Option values configured.  The custom option fields must be created on the destination failover
    server to eliminate this error.  You can recreate the custom scope options by following the below instructions.

    Open DHCP.
    In the console tree, click the applicable DHCP server.
    On the Action menu, click Set Predefined Options.
    In Predefined Options and Values, click Add.
    In Option Type, type the required information to define the new option, and then click OK.

    After you create the custom option fields, go to the scope on the source failover server and right-click and select Replicate Scope.

    Hope this helps.

    • Предложено в качестве ответа
      _JeB_
      16 февраля 2015 г. 10:49
    • Отменено предложение в качестве ответа
      _JeB_
      16 февраля 2015 г. 10:49

  • I confirm this answer:

    When configuring Failover, you need to endure that all custom options created on your local server are also manually recreated on remote server, even if not used. Otherwise you’ll get error 20010.

    • Изменено
      _JeB_
      16 февраля 2015 г. 10:53
      Confirmed answer
    • Предложено в качестве ответа
      jAkEkInG
      19 декабря 2015 г. 0:30

  • I know I’m late to the party but I’d like to offer some insight, since everyone here has been SO SO helpful to me.  Yes you have to make sure that ALL of your custom settings from the primary DHCP server are also mirrored on the other server.  
    Those customizations could be vast and many.  The more customizations you try to replicate, the more prone to human error you will be.

    The easier way is to wait until after hours, when no one needs DHCP. Backup the DHCP settings from the primary server by right-clicking the server name under the DHCP console, and select backup.

    Copy the backed up folder to the secondary server. Restore from that backup. Then DELETE all of the scopes, on this secondary server.  (Remember for failover to work, the secondary server cannot have the same scopes. you don’t want the scopes, you
    just want an error-proof way of copying the custom options over.
    )  Then you can continue creating the failover relationship. It worked for me just now. :)

    • Предложено в качестве ответа
      SMCZ
      11 января 2016 г. 13:48

  • I know I’m late to the party but I’d like to offer some insight, since everyone here has been SO SO helpful to me.  Yes you have to make sure that ALL of your custom settings from the primary DHCP server are also mirrored on the other server.  
    Those customizations could be vast and many.  The more customizations you try to replicate, the more prone to human error you will be.

    The easier way is to wait until after hours, when no one needs DHCP. Backup the DHCP settings from the primary server by right-clicking the server name under the DHCP console, and select backup.

    Copy the backed up folder to the secondary server. Restore from that backup. Then DELETE all of the scopes, on this secondary server.  (Remember for failover to work, the secondary server cannot have the same scopes. you don’t want the scopes, you
    just want an error-proof way of copying the custom options over.
    )  Then you can continue creating the failover relationship. It worked for me just now. :)

    That’s work for me, with migration DHCP from 2003 to 2012.

    Thank you!

  • I have the same problem and wish I could kick the programmer ita who put this error message.

    WTH doesn’t the error include the name of the specified option?

    I can easily clone a dhcp server manually by:

    SET myNetworkDrive=\…

    netsh dhcp server \127.0.0.1 dump > %myNetworkDrive%dhcpDump_source.txt

    and then on the destination

    netsh exec %myNetworkDrive%dhcpDump_source.txt

    So why can’t DHCP failover do it?

    • Изменено
      mandango
      29 июня 2016 г. 10:37

  • The problema are the options in the scope. Just delete the options and failover creation will success.

    After that recreate the option in the both DHCP Servers manualy.

    Regards.

    • Предложено в качестве ответа
      Dan Dziubanski
      13 декабря 2017 г. 18:26

  • This is correct, we just had this issue this morning, we created some scopes option for telephony. Which stopped the sync. We just added the options to the scope, and everything synced up.

Are you looking for a solution to the ‘DHCP failover error 20010’? we can help you with it.

Here at Bobcares, we have seen several such DHCP-related errors as part of our Server Management Services for web hosts and online service providers.

Today we will take a look at the causes for this error and see how to fix it.

What causes DHCP failover error 20010 to occur

Before we discuss the solution to this error message, let’s take a look at why does this error occurs.

This error can occur while configuring DHCP failover for one of the scopes.

Also, this error can occur with any scope that has one or more custom DHCP attributes.

For instance, the error appears as below.

dhcp failover error 20010

How we fix DHCP failover error 20010

Now let’s take a look at the solution our Support Engineers provide to resolve this error.

1. Ensure that all the custom settings from the primary DHCP server are also mirrored on the other server. Because it is possible that those customizations are vast and numerous. The rule is if you have more customizations to replicate then you are prone to more human errors.

Right-click on IPv4 and select “Set Predefined Options”, here you can confirm if both the DHCP servers had the same custom options created.

2. It is always good to have a backup of the DHCP settings when no one needs it. You can take the backup by clicking on the server name under the DHCP console and select backup. After that, copy the folder that you backed up to the secondary server. Then restore from that backup. Finally, delete all scopes on the secondary server.

[Need any further assistance in fixing DHCP errors? – We are here to help you]

Conclusion

In short, Today, we saw the solution provided by our Support Engineers to this error.

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Problem:

When configuring DHCP failover for one of my scopes the process kept failing with the message “Configure failover failed. Error 20010. The specified option does not exist”

Workaround:

Right-clicking on IPv4 and selecting “Set Predefined Options” I confirmed that both DHCP servers had the same custom options created. This is the normal cause of this message, however in my case even though both servers had the exact same predefined options configured the message persisted.

I narrowed the issue down to a particular option by creating a new test scope with the same options and removing the configured options one by one until replication worked. I still don’t know what the exact cause was but I determined I no longer required this option on the scope so I removed it from the scope configuration.

My guess is it had something to do with that the scope coming over from a 2003 server to a 2016 server via the netsh export/import commands. I can only guess there is a bit of dodgy configuration around this predefined option but everything else seems fine.

Below is a screenshot of the option that was causing me pain;

DHCP failover error

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