migrate dhcp service from win 2000 server to win 2003 server


G

Guest

Dear all, thanks for your help.

Current config:
Windows 2000 server sp3 with DHCP service enabled:
- mulit scope has been created for different ip subnet. (no superscope
created)
- ip helper address is use in our core cisco switch to let different
subnet's pc to get ip address from their own vlan/subnet correctly.

Right now, I need to migrate the DHCP service to a new installed Windows
2003 servers. I will install two win 2003 sp1 with DHCP service enabled for
load blancing and to prevent dhcp out of service if one of server was down.

Can I move the win 2000's dhcp db to windows 2003 server?
Or I have to re-created it in both new win20003 server?

For more than one DHCP server in the same subnet, I have read the best
practice doc
http://technet2.microsoft.com/windo...f464-40ea-ac88-2060e6769f331033.mspx?mfr=true

It mention that I should use supercopses when create scope for each subnet
and assign ip range 50/50 on each dhcp server:
Please correct me if my understanding is not correct, I did the following:

1st DHCP server:
- create scope for each sub.
Eg. subnet 1
IP Range 192.168.0.2-254/24
Gateway is 192.168.0.1
Exclude: 192.168.0.130-254

subnet 2:
IP Range 192.168.1.2-254/24
Gateway is 192.168.1.1
Exclude: 192.168.1.130-254

Create a superscope:SCOPE1 and assign scope subnet 1 and 2 to the superscope
SCOPE1.

2nd DHCP server:
- create scope for each sub.
Eg. subnet 1
IP Range 192.168.0.2-254/24
Gateway is 192.168.0.1
Exclude: 192.168.0.2-129

subnet 2:
IP Range 192.168.1.2-254/24
Gateway is 192.168.1.1
Exclude: 192.168.1.2-129

Create a superscope:SCOPE1 and assign scope subnet 1 and 2 to the superscope
SCOPE1.

Does the above steps correct?
How about the reservation? Should I create same reservation entry on both
DHCP server? Does the reservation still work If one of DHCP server was down?

For the old win2000 dhcp server, ip has been lease to a lot of pc.
Can I just stop the dhcp in the old dhcp server and start the dhcp service
on the 2 new dhcp server? Any error when client pc's lease time expired? Can
they renew the ip from the new DHCP server without error and delay?

Thank for your help

Regards,

Patrick
 
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