Hi Experts...
I'm curious to know if there's away to use 2 DHCP servers in one with priority to DHCP on Windows Server 2003 machine, and a DHCP router as a secondary DHCP server...
Any suggestions ?
Thanks in advance..
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DONT use the DHCP in a router, the router based DHCP does not have all the options needed for most domains. You can if you like use 2 Windows DHCP servers - the simplest option (assuming its a single subnet), it to sphit the scope between the two DHCP servers eg set one to use the IPs 192.168.1.10 - 192.168.1.100 and the other to use 192.168.1.101 - 192.168.1.200
So long as the two scopes do not overlap than there will be no issues.
you can use 2 servers in one segment but can't set priority
what you can do is set a 20/80 config where the server you want to hold the majority of the load have 80% of the IPs and the other one 20%. this way you nsure more IPs will be assigned by the primary but if there are enough IPs on the secondary server it can theoretically assign all the IPs
If you want to force certain systems to obtain assigned IP addresses through DHCP, rather than a random IP from the DHCP server scope, you can use DHCP Lease Reservations with each server to assign these "static" IP addresses - not that you would want to do it for too many systems.
Here's a link to creating DHCP Lease Reservation instructions in http://www.windowsnetworki
Just an additional thought...
Mike
Thanks everyone, Actually the idea of having 2 DHCP servers is for a Fail-over situation .
In case that I had a problem with the server during the time i'm not in the office.. I want all the clients to be able to get IP through the second DHCP server by only selecting the repair option on the LAN properties.
All I need to do is just tell my assistant to shutdown the server so by then next DHCP server is available when the repair option is selected.
The just use multiple windows DHCP servers as I suggested - that will do the trick and will allow you to specify the full range of dmain specific information that is not present in router based DHCP.
Do bear in mind that for additional fault tollerance you would also find it useful to have at least two Domain controllers, both of which are also Global Catalog and DNS servers.
The reason why I want to use the second DHCP of the router device is becoz the internet gateway is separate on both Windows Server Machine and ADSL router.
Windows Server has 2 Lan cards and is using Leased Line connection, I know I can add another Lan card and use the ADSL router on a third LAN, but this needs routing configuration to be applied and needs someone knows well what is he doing ... I'm not sure my assistant can do this .
So I need it to be simple for him,,,, just to shutdown the server and do the repair option on the clients or maybe restart the switch.
Yes it can be done. This should help.
http://technet.microsoft.c
Business Accounts
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by: demazterPosted on 2009-10-26 at 05:21:43ID: 25661487
You could add part of the same scope to your Router and part to your Windows Server.
So for example you could set your Windows server to: 192.168.0.1 to 192.168.0.100 and then set your router to 192.168.0.101 to 192.168.0.200
This will not set a priority and clients could get them from either server but it will provide you with a little resilience. You just need to ensure the router one is configured to use the Windows server as DNS.
With the exception of Small Business Server 200x, if you install another DHCP server on a network with SBS then the SBS one will shut down.