multiple DHCP scopes question

this has always been a little unclear to me. I have only worked in
environments small enough that one dhcp server and one scope was all that
was needed however while studying for things I certianly come accross DHCP
questions concerning multiple scopes. I have seen depictions of networks
with multiple subnets all serviced by the same DHCP server with a different
scope for each subnet.

I am unclear as to how the right scope info is picked up by the right
subnet/clients?

1) does there need to be a seperate NIC for each respective scope for each
subnet? In other words, does the DHCP server have to have a seperate
physical connections for each subnet it services? Thats what I WAS under the
impression took place but after seeing serveral network depictions in sample
test questions that do not make that clear I am not sure... plus

2) what about one DHCP server located on subnetA that services that subnet
plus subnetB and subnetC which are behind routers? Each remote subnet has a
DHCP Relay agent running (or the router may support it). So how does the
DHCP server on subnetA know how to hand out the right scope info for each of
these 3 subnets?

These may be the same question... In my confused state I'm not sure but
asking them both should make clear what I'm trying to find out.

any info on this would be greatly appreciated.
thanks.


.

Relevant Pages

  • Re: multiple DHCP scopes question
    ... There are two different ways to service multiple subnets with a single DHCP ... DHCP server and use relay agents. ... header and offers an address from the matching scope. ... > scope for each subnet. ...
    (microsoft.public.windows.server.networking)
  • Re: Add new subnet to DHCP? Possible Problems?
    ... to have multiple scopes doing 1 piece of the subnet each. ... use the entire subnet range and then use Exclusions to limit the range down ... Create a Scope for it on the existing DHCP Server ...
    (microsoft.public.windows.server.networking)
  • Re: DHCP on a branch office server?
    ... Windows Networking MVP 2001-2006 ... On DHCP server A, serving subnet A, create a scope A that has the 80% of ... the addresses for that subnet. ...
    (microsoft.public.windows.server.networking)
  • Re: Scope wont release addresses
    ... > I have a scope on a DHCP server that servers my clients on ... Each scope is to be a different subnet, ... router must also be setup to forward DHCP Queries to the DHCP Server. ... that the client in the proper subnet receives the proper address from the ...
    (microsoft.public.win2000.networking)
  • RE: Increase DHCP numbers
    ... have two other options: superscoping or resubnetting. ... Simply changing the DHCP scope parameters does not give you more leases. ... DHCP runs on top of your network subnet architecture and can hand out ...
    (microsoft.public.win2000.general)
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