Guest ChuckN Posted January 20, 2008 Posted January 20, 2008 Our DC is a W2K3 Enterprise Server. We have a backup DC /webserver. Does it make sense to run DHCP from both servers? There doesn't seem to be a way to replicate DHCP servers. Any suggestions would be appreciated.
Guest Meinolf Weber Posted January 21, 2008 Posted January 21, 2008 Re: DHCP with multiple DCs Hello ChuckN, Just split your scope 50/50 or 60/40 and exclude the part that the other one is hosting. In case of a failure or longer downtime for one server activate the excluded part. Thats all. 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 YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm > Our DC is a W2K3 Enterprise Server. We have a backup DC /webserver. > > Does it make sense to run DHCP from both servers? There doesn't seem > to be a way to replicate DHCP servers. > > Any suggestions would be appreciated. >
Guest Simon Posted January 21, 2008 Posted January 21, 2008 Re: DHCP with multiple DCs The other possible way and this does depend on the size and speed of your network, is to setup the two servers and leave one unauthorised and unactivated. When you need the other server, turn on conflict detection which means the DHCP server will check to see if an IP address is already in use before responding to the client. If you have a large network this is not a good idea as it could generate lots of traffic. Don't forget, unless you've changed the lease length from the default of eight days, you've got a little while before the DHCP clients drop-off the network. "Meinolf Weber" wrote: > Hello ChuckN, > > Just split your scope 50/50 or 60/40 and exclude the part that the other > one is hosting. In case of a failure or longer downtime for one server activate > the excluded part. Thats all. > > 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 YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm > > > Our DC is a W2K3 Enterprise Server. We have a backup DC /webserver. > > > > Does it make sense to run DHCP from both servers? There doesn't seem > > to be a way to replicate DHCP servers. > > > > Any suggestions would be appreciated. > > > > >
Guest Graham Posted January 23, 2008 Posted January 23, 2008 Re: DHCP with multiple DCs netsh is the best tool for dumping the config to a text file in 2003. The text file can then be edited manually and re-input with netsh. My advice is to set the scopes identically on both servers, but then mask off the 60/40 with exclusions. Then, if a server goes offline, the exclusions can always be removed to give one server full contol. Dont forget that two servers will mean two helper addresses on any remote routers. "Meinolf Weber" wrote: > Hello ChuckN, > > Just split your scope 50/50 or 60/40 and exclude the part that the other > one is hosting. In case of a failure or longer downtime for one server activate > the excluded part. Thats all. > > 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 YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm > > > Our DC is a W2K3 Enterprise Server. We have a backup DC /webserver. > > > > Does it make sense to run DHCP from both servers? There doesn't seem > > to be a way to replicate DHCP servers. > > > > Any suggestions would be appreciated. > > > > >
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