Re: DHCP multiple subnets
- From: "Jeniffer K" <me@xxxxxx>
- Date: Tue, 24 Jan 2006 14:53:38 -0500
yeah but i'm talking about two different subnets, so is it possible to bind
a scope to a nic
"Doug Sherman [MVP]" <dsherman@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:uP2N8zRIGHA.3120@xxxxxxxxxxxxxxxxxxxxxxx
> Yes, you can do that, and it is common practice for purposes of
> redundancy/failover. However, it is important that you split the scope by
> excluding different portions of the address range on each DHCP server:
>
> http://support.microsoft.com/kb/280473/en-us
>
> Another thought - Right click My Network Places and select Properties.
> Click Advanced and select Advanced Settings - make sure the Local Area
> Connection for the 192.168.20.250 NIC is at the top of the binding order.
> Sometimes when you add a second NIC to a server the new adapter winds up
> at
> the top of the binding order and this can make a domain controller behave
> very strangely.
>
> Doug Sherman
> MCSE, MCSA, MCP+I, MVP
>
> "Jeniffer K" <me@xxxxxx> wrote in message
> news:Odi03fRIGHA.2300@xxxxxxxxxxxxxxxxxxxxxxx
>> Thanks Doug, and if I ever decide to configure the student server to hand
>> out DHCP (guess ill have two scopes) to both subnets and administration
>> wouls that be possible so that if your attached to the 1.x nic you should
>> obtain a 1.x address and if you're attached to the 20.x subnet it should
>> give you a 20.x address
>>
>> "Doug Sherman [MVP]" <dsherman@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
> message
>> news:O$XnZYRIGHA.2928@xxxxxxxxxxxxxxxxxxxxxxx
>> > On the student server open the DHCP console; right click the server and
>> > select Properties. Click the Advanced tab - Bindings button. DHCP
> should
>> > be bound only to the 192.168.20.250 adapter.
>> >
>> > Doug Sherman
>> > MCSE, MCSA, MCP+I, MVP
>> >
>> > "Jeniffer K" <me@xxxxxx> wrote in message
>> > news:eiCDcuQIGHA.2064@xxxxxxxxxxxxxxxxxxxxxxx
>> >> Dear NG, here is another one...
>> >>
>> >> We have a W2k3 server setup in a school acting as a DC, File server
>> >> and
>> >> DHCP, the server is obviously not connected to the internet because we
>> > need
>> >> to make sure that no student has access to the web, not psychically
>> >> nor
>> >> technically even DHCP is configured to hand out blank gateways, we
>> >> want
>> >> however to have the ability to manage and support the server remotely
> so
>> > we
>> >> decided to attach the second nic to the administration network (on a
>> >> separate DC also providing DHCP) which has a DSL line, here is what im
>> >> thinking of doing it...
>> >>
>> >> * the student subnet on nic one is 192.168.20.x
>> >> * the administration subnet on nic two is 192.168.1.x
>> >> *DHCP on the student server has a scope of
> 192.168.20.100-192.168.20.199
>> >> * Routing and remote access is disabled on the student server
>> >>
>> >> *NIC config on the student server*
>> >> NIC 1 - Stdent network
>> >> IP= 192.168.20.250
>> >> SM= 255.255.255.0
>> >> GW= empty!
>> >> DNS = 192.168.20.250
>> >>
>> >> NIC 2 - Administration network
>> >> IP= 192.168.1.250
>> >> SM= 255.255.255.0
>> >> GW= 192.168.1.1
>> >> DNS= ?
>> >>
>> >> when preforming a quick test i ened up having a few machines in the
>> >> administration office with an ip of192.168.20.x (obviously causing it
> to
>> >> lose network connection to their own server) because it was picking up
>> > DHCP
>> >> from the wrong server, can I tell DHCP to respond to DHCP request only
> on
>> >> NIC 1 and if not any other recommendations?
>> >>
>> >> thanks
>> >>
>> >>
>> >>
>> >>
>> >>
>> >
>> >
>>
>>
>
>
.
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