Guest wycky Posted November 29, 2007 Posted November 29, 2007 I am going to replace the DC with a new server. First after the os is loaded i will join the domain, set up the roles: dns, wins then should i do the promo? Then add the DHCP? How can i have 2 dhcp servers running at the same time, meaning the old one and the new? Also can i have the DHCP cover 2 class b subnets?
Guest James McIllece [MS] Posted November 29, 2007 Posted November 29, 2007 Re: DHCP =?Utf-8?B?d3lja3k=?= <wycky@discussions.microsoft.com> wrote in news:AE0FEB06-1184-4C51-9588-95646510B327@microsoft.com: > I am going to replace the DC with a new server. First after the os is > loaded i will join the domain, set up the roles: dns, wins then should > i do the promo? Then add the DHCP? How can i have 2 dhcp servers > running at the same time, meaning the old one and the new? Also can i > have the DHCP cover 2 class b subnets? > After joining the new server to the domain, run dcpromo, install DNS and WINS. (It is good to have AD installed before DNS and DHCP since both require AD for proper setup.) For DHCP, create an exclusion range for each scope on the old server so that 50% of the addresses are excluded from distribution. You could also shorten lease times to an hour or so. Then all clients renewing IPs will get IPs from the unexcluded portion of the address pool. On the new DHCP server, create scopes that are identical except that the exclusion range is created for the 50% of the addresses that are currently available for lease on the old DHCP server. Authorize the DHCP server in AD, activate the scope, and the new server will start leasing IPs not leased by the original server. When you are ready to take the old DHCP server offline, just delete the exclusion range on the new DHCP server. If you have 2 class B subnets, just create a different scope for each subnet. HTH -- James McIllece, Microsoft Please do not send email directly to this alias. This is my online account name for newsgroup participation only. This posting is provided "AS IS" with no warranties, and confers no rights.
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