Pkafkas
asked on
Setting up a 2nd DHCP server
Hello:
I setup a DHCP server at my work a couple of years ago and it is working jsut fine. I needed to setup some DHCP - Relay rules on our main Router, to enable DHCP to connect to a specific VLan, that I setup as well.
My question is regarding the setup of a 2nd DHCP router, for redundancy. Currenlty I get very nervous if I restart the existing DHCP server becasue it is the only DHCP server at my work.
My questions are,
1. Is it a good idea to have a 2nd DHCP server, for backup or reducndancy purposes?
2. Should I have them duplexed, or can I have 2 DHCP server running simultaneously?
3. What else would be required in setting up a 2nd DHCP server?
a. Is there anything I need to be careful of in setting up a 2nd active DHCP Server, will the 2 DHCP server have any problems sendign out IP addresses and working working together with the same rules(reserved IP's)?
Currently the 1 DHCP server is runnig on Wondows 2003 Server Std edition.
I setup a DHCP server at my work a couple of years ago and it is working jsut fine. I needed to setup some DHCP - Relay rules on our main Router, to enable DHCP to connect to a specific VLan, that I setup as well.
My question is regarding the setup of a 2nd DHCP router, for redundancy. Currenlty I get very nervous if I restart the existing DHCP server becasue it is the only DHCP server at my work.
My questions are,
1. Is it a good idea to have a 2nd DHCP server, for backup or reducndancy purposes?
2. Should I have them duplexed, or can I have 2 DHCP server running simultaneously?
3. What else would be required in setting up a 2nd DHCP server?
a. Is there anything I need to be careful of in setting up a 2nd active DHCP Server, will the 2 DHCP server have any problems sendign out IP addresses and working working together with the same rules(reserved IP's)?
Currently the 1 DHCP server is runnig on Wondows 2003 Server Std edition.
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
Ok, I have a few questions about this plan:
1. Will I need to make another routing rule, on our Router, to allow DHCP relay from teh 2nd DHCP server?
2. Will I need to setup the 2nd DHCP server before I initiate the split scope option?
a. it appears from the configuratin wizard above, that is the case.
1. Will I need to make another routing rule, on our Router, to allow DHCP relay from teh 2nd DHCP server?
2. Will I need to setup the 2nd DHCP server before I initiate the split scope option?
a. it appears from the configuratin wizard above, that is the case.
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
Ok, I like the idea of having a 50/50 scenario as well. I would like to review my process just to make sure I am not forgetting anyhting.
1. I have a working DHCP server.
a. DHCP Relay is enabled on our router.
b. This DHCP server is sending IP addresses across to a different subnet.
c. This DHCP server is on our Defaul VLan with an IP scheme os 192.X.X.X .
i. The Addresses least out are 10.220.210.X/24.
2. I would like to add a secondary DHCP server that I have created on a new Servers V-Lan.
a. This server VLan has an IP scheme of 10.220.110.X/25 .
i. The addresses to be leased are the same as above, 10.220.210.X/24.
b. If I understand the process correctly I will have to do sokething like steps shown below.
--------------------------
1. Setup the DHCP Server service on another server.
a. I have to enter some IP Range settings for the 2nd server as I have on the 1st DHCP server correct?
i. IP addresses 'start' & 'End' .
2. Then follow the Split-Scope instructions found in: http://blogs.technet.com/b/teamdhcp/archive/2009/01/22/how-to-configure-split-scope-using-wizard.aspx
3. Then enable a routing rule to allow DHCP leases to be sent over the network, from the new 2nd DHCP Server.
1. I have a working DHCP server.
a. DHCP Relay is enabled on our router.
b. This DHCP server is sending IP addresses across to a different subnet.
c. This DHCP server is on our Defaul VLan with an IP scheme os 192.X.X.X .
i. The Addresses least out are 10.220.210.X/24.
2. I would like to add a secondary DHCP server that I have created on a new Servers V-Lan.
a. This server VLan has an IP scheme of 10.220.110.X/25 .
i. The addresses to be leased are the same as above, 10.220.210.X/24.
b. If I understand the process correctly I will have to do sokething like steps shown below.
--------------------------
1. Setup the DHCP Server service on another server.
a. I have to enter some IP Range settings for the 2nd server as I have on the 1st DHCP server correct?
i. IP addresses 'start' & 'End' .
2. Then follow the Split-Scope instructions found in: http://blogs.technet.com/b/teamdhcp/archive/2009/01/22/how-to-configure-split-scope-using-wizard.aspx
3. Then enable a routing rule to allow DHCP leases to be sent over the network, from the new 2nd DHCP Server.
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
Do I have to enter the same IP ranges on the 2nd DHCP server as on the 1st DHCP server?
I had a type-o in my previous commnet. I put 'same' and I meant to type 'same'.
I had a type-o in my previous commnet. I put 'same' and I meant to type 'same'.
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
A Dynamic Host Configuration Protocol (DHCP) split-scope configuration using multiple DHCP servers allows for increased fault tolerance and redundancy over using only one DHCP server.
http://technet.microsoft.com/en-us/library/ee405264(v=ws.10).aspx