Dear All,
We have around 50 sites with 80 DCs, all in single domain.
Now issue is three sites, have very restrictive network configuration for subnets. (all having 500+ machines)
i.e. their subnet specification in AD is 10.*/21
but at the network level they have divided this subnet into VLANs with mask of /25, all inclusive in mask /21 defined for subnet at AD level.
Problem: when machine tries to find the nearest DC using domain DNS name, DNS server doesn't give IP of nearest DC first.
as server falls into only into one of the /25 subnets. ( "subnet mask request" in DNS server is enabled)
And as a result, machines go to other DCs for netlogon related activities/scripts. (generating unnecessary WAN traffic, slow login)
I am working with Network team to initiate the feasibility of so many VLANs, (long process)
and if its possible to merge some VLAN, then I will move the DC in that subnet.
Any solution other than hard coding nearest DC in host file of all these machines.
Regards,
Kamlesh
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"Fortune and Love befriend the bold"
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"Fortune and Love befriend the bold"
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