migration from 2008 server to 2012 R2 DHCP - general advice and any problems?

-

hi all

i tried migrate dhcp using backup , restore other week did not realise using 2008 backup wouldn't go hand in hand using restore 2012 r2. quite silly.

anyway can see there few different articles around web technet migration; can people please let me know errors or problems may have encountered using powershell export-dhcpserver commands , dhcp failover in server 2012 r2?

i going migrate off older windows 2008 r2 server 1 2012 r2 server not sure if recommended or indeed viable.

my 2 servers in 1 subnet, not sure if create or use dc failover if affects dhcp - being in subnet entirely? 

i read blog - https://blogs.technet.microsoft.com/teamdhcp/2012/09/10/migrating-existing-dhcp-server-deployment-to-windows-server-2012-dhcp-failover/ - , different article - https://technet.microsoft.com/en-au/library/dn495428.aspx

can has migrated dhcp off 2008 r2 windows 2012 r2 let me know method have used, , problems might have occurred? haven't done before , appreciate pointers.

also don't want dhcp failover due setup of these servers isn't plausible - have 2 different subnets , ip pointers on 2008 r2 server.

thanks.


hiyou can follow these steps migration 

- cmd console "netsh dhcp server export c:\dhcpbackup.txt all" ->enter

- stop dhcp service , set start type "disabled"

- copy "dhcpbackup.txt"file 2008 2012 (on c dirve or etc)

- install dhcp role on server 2012 but not configure or create scope.

- check there scope on 2012 "netsh dhcp server show scope" if there "netsh dhcp server delete scope(ip of scope) dhcpfullforce" delete

- "netsh dhcp server import c:\dhcpbackup.txt all" (where backup file avaible)

-finaly server manager->tools->open dhcp check situation (if there red cross on,right click on dhcp server click "authorize" , "activate",

then configure dhcp failover cluster,

https://technet.microsoft.com/en-us/library/hh831385.aspx?f=255&mspperror=-2147217396

finaly need configure ip helper address on routers point new dhcp server.

this posting provided no warranties or guarantees,and confers no rights. best regards burak uğur



Windows Server  >  IPAM, DHCP, DNS



Comments

Post a Comment

Popular posts from this blog

Group Policy Event ID 1058 Error Code 1326 (The user name or password is incorrect)

-
i seeing odd error on 1 of our domain controllers. have dealt event id 1058 errors whereby policy (or policies) not replicating, receiving error along error code 1326 on server, , apparently happening default domain policy: log name:      system source:        microsoft-windows-grouppolicy date:          8/10/2015 3:09:54 pm event id:      1058 task category: none level:         error keywords:      user:          s-1-5-21-1484152634-2550175353-3916092219-3287 computer:      <dc name>.<domainname> description: processing of group policy failed. windows attempted read file http://schemas.microsoft.com/win/2004/08/events/event ">   <system>     <provi...
Read more

Suspicious event log Event ID: 4905

-
hi thr, could please me understand causing such event logs generate ? as  i understand, vssvc.exe pertains volume shadow copy used backup purpose.  we have third party application used taking backup of servers. the event longs generated following messages: 1) attempt made unregister security event source. 2) attempt made register security event source. these events not regular generated on random days. standard fields: date:               2013/10/19 time:               02:32:19 importance:         critical rule name:          security event monitored machine:  <domain controller> log format:         windows log name:           security event id:           4905 in work hours:      yes dynamic fields: internal timestamp: 2013/10/19 ...
Read more

DCOM received error "2147746132" from...

-
hi everybody, i have dc (my windows essentials 2012 server) , windows 2012 server in network.  the windows server 2012 inside domain. on server, got "non stopping" error says in event logs : ===> dcom received error "2147746132" fromd computer xxxx(my dc computer) while server trying activation : {6df8cb71-153b-4c66-8fc4-e59301b8011b} it never stops, got 11000+ new events :s i found : http://support.microsoft.com/kb/971153/fr i'm not sure should ? does got idea ? matthieu. hi, please try solution mentioned in below link: http://www.eventid.net/display-eventid-10006-source-dcom-eventno-272-phase-1.htm regards, cicely Windows Server  >  Windows Server 2012 General ...
Read more