DHCP to Certen Adaptor

[jtoland]

Hi Guys

Currently i am running Windows Server 2008 R2 and want to configure a DHCP Scope to a certain adaptor so i can split the network up abit

Currently 1 adaptor that's running 192.168.1.1 - 192.168.1.254

and i have set-up another scope 192.168.3.1 - 192.168.3.254

but how do i like it to adaptor 2

please help

thanks

jtoland

[andydis]

Hi it is impossible to set a dhcp scope per NIC.

 

However , you can setup VLAN's on your network and give the ranges different subnet masks.

Once you do this DHCP is intelligent enough to know which subnet mask you are making a request from and assign you a range in the correct scope.

[Davit2005]

I'd be careful if you are adding mutliple adapters on a DNS server due to Multi-Homing.

 

Normally you would use a layer 3 switch which is best option as @andydis indicates. Setting up vlans and ip routing and then using ip helper addresses on the vLans that are not same network (vLAN) as your DHCP server. There are numerous threads on here which may help you set this up.

Edited October 2, 2015 by Davit2005

[pablo007]

It is not impossible to set up a dhcp scope to offer different ip address ranges to different NICS on the same machine but as others have said each nic needs to be in its own vlan, with dhcp scopes set to each IP range, dhcp helper configuration on your switches will take care of the rest.

[Davit2005]

It is not impossible to set up a dhcp scope to offer different ip address ranges to different NICS on the same machine but as others have said each nic needs to be in its own vlan, with dhcp scopes set to each IP range, dhcp helper configuration on your switches will take care of the rest.

 

You don't need any seperate NIC's to do this if you use vlans with a Layer 3 switch with ip routing enabled or even do Router on a stick if you are desperate. But the Layer 3 switch method is the more recognised method and the best.

[andydis]

I agree with @Davit2005 use the same NIC , otherwise you may get other binding/ DNS / services errors

[pablo007]

You don't need any seperate NIC's to do this if you use vlans with a Layer 3 switch with ip routing enabled or even do Router on a stick if you are desperate. But the Layer 3 switch method is the more recognised method and the best.

 

Agree entirely this is easily achieved on one NIC using layer 3 stuff but given you have two nics IMO utilize both cards.