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The Specified Dhcp Client Is Not A Reserved Client

You may get a better answer to your question by starting a new discussion. Kurt Rinear, Mar 1, 2010 #17 Lindy Guest Re: Error DHCP Windows 2008 R2, DHCP client is not a reserved clie http://support.microsoft.com/kb/2005980 At the bottom it says reserved IP's can come I want both servers to keep track of both reservations in either pool. Consider the following: For example if you have a 10.100.0.0/16 subnet and about 600 client devices max on your LAN you could make your DHCP severs fault tolerant by setting them

In W2k8 and W2k3 this works. > > But I need this functionality also in R2, so I would be glad if Microsoft > will fix this issue. > > Regards, Get 1:1 Help Now Advertise Here Enjoyed your answer? Why did we never notice this before? Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on LinkedIn (Opens https://social.technet.microsoft.com/Forums/windowsserver/en-US/d906482f-cc2a-4f3f-b6c9-34531195769b/dhcp-the-specified-dhcp-client-is-not-a-reserved-client?forum=winservergen

Please reply back to the newsgroup or forum for collaboration benefit among responding engineers, and to help others benefit from your resolution. This can be beneficial to other community members reading the thread. If not, please let us know, as well as if there are >> other >> eventID errors on the DCs. >> >> According to the following, it may not be authorized Bookmark the permalink. 0 thoughts on “DHCP Behavioral Change in 2008 R2” ktm.geek on December 9, 2010 at 2:29 am said: Microsoft have released a hotfix, refer: http://support.microsoft.com/kb/2360872/en-us If you only

So I am going to have to expand the range on both servers then create exclusions on each for the others range, then I can create reservations. It's nice to have a > work-around, but it's pretty darned ridiculous. > > Just chiming in, hopefully someone from MS can add this to a to-do list. > > "Gerald Do you have a > >> translation? > >> > >> Ace > >> > >>> Nach einigen Tests ist mir aufgefallen, dass Reservierungsversuche > >>> von IP Adressen auserhalb des Please >>>>>> check >>>>>> http://support.microsoft.com for regional support phone numbers.

Yes No Additional feedback? 1500 characters remaining Submit Skip this Thank you! more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Managed to add the reservation to "x.x.x.2" to the DHCP reservation. In short, yes, it will work (if the reservation already exists).

A DHCP server initializes and starts providing DHCP services to clients only if the server finds its IP address in the authorized list for each of the enterprise roots reported by Member Login Remember Me Forgot your password? Help Desk » Inventory » Monitor » Community » MenuExperts Exchange Browse BackBrowse Topics Open Questions Open Projects Solutions Members Articles Videos Courses Contribute Products BackProducts Gigs Live Courses Vendor Services Cheers, JJ Tuesday, November 09, 2010 9:50 PM Reply | Quote 0 Sign in to vote Would it not be simpler to make the scope1-240 and reserve 1-40?

If so, is > it EventID# 20018? Follow any responses to this post through RSS 2.0.You can leave a response or trackback from your own site. There are no EVents it EventID# 20018 in the LOGs. Will adjusting the Address Pool affect my reservations?

You also get this error message when trying to create a reservation that doesn't fall inside the scope/subnet of the scope you are trying to add it to. With the server migration tool it is also smart - check out Video, Migrating DHCP using the Windows Server 2008 R2 Migration Tools http://edge.technet.com/Media/Migrating-DHCP-using-the-Windows-Server-2008-R2-Migration-Tools/ DHCP Server Migration Guide http://technet.microsoft.com/en-us/library/dd379535(WS.10).aspx Thank you DHCP server will check if the reservation belongs to Address Pool.This helps improve the security, and the DHCP server will not lease the IP addresses to the clients that are not Thanks, Justin Reply Subscribe RELATED TOPICS: DHCP Reservation Issues in Server 2008 R2 DHCP Reservation expiration times DHCP Reservations fail with "Specified address is not available" and more!

Than you for the translation Meinolf Kind regards Christoph "Meinolf Weber [MVP-DS]" wrote: > Hello Ace Fekay [MCT], > > I'll try to translate, i know this language > > > Example: Server 1 - Scope 10.1.0.0, Range 10.1.1.0 - 10.1.2.255 Server 2 - Scope 10.1.0.0, Range 10.1.3.0 - 10.1.4.255 We add Printerreservations to both server: IP 10.1.1.5 So this address is But I need this functionality also in R2, so I would be glad if Microsoft will fix this issue. Join Now I am currently deploying Windows Server 2008 R2 and am having some difficulty on my new DCs with DHCP reservations.

http://technet.microsoft.com/en-us/library/cc976339.aspx -- Ace This posting is provided "AS-IS" with no warranties or guarantees and confers no rights. After some investigation I discovered that Windows 2008 R2 doesn't allow reservations that are not in the scope, although the subnetmask (for example 255.255.0.0)  is big enough. When you do this turn of the printer or other device and delete the lease it might already have for its MAC address.

Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights. ** Please do NOT email, only reply to Newsgroups ** HELP us help

Well now you have to work around it (or be a bit more by the book), but as you have seen you can still get it function again. This can be beneficial to other community members reading the thread. It is possible that the migration method, since it has not been officially released yet, could be the issue. Why would you want your DHCP server not authorised?

He mentioned to use the Windows > >>> Server-Migrationtools for Windows Server 2008 R2. > >>> I'll check this, though I have problems installing the tools on > >>> Windows > Thanks Ian Sunday, October 31, 2010 7:58 AM Reply | Quote Answers 0 Sign in to vote Hi, Thanks for the post. Yes, my password is: Forgot your password? Email check failed, please try again Sorry, your blog cannot share posts by email. %d bloggers like this: Go to Top

You can export the settings with the following command : netsh dhcp server ip-adres server scope X.X.X.X dump > c:\dump,txt Then edit the subnet mask and import the scope with the Existing, > > > migrated reservations are working fine. > > > > > > Christoph > > > > > > "Ace Fekay [MCT]" wrote: > > > > > Marked as answer by Miles ZhangModerator Friday, December 03, 2010 1:56 AM Monday, November 01, 2010 9:03 AM Reply | Quote Moderator 0 Sign in to vote Greetings, Just found a