Re: Running out of DHCP address leases howto rectify?

In news:9db901bd-238d-4b70-8d69-4c5d238d6095@xxxxxxxxxxxxxxxxxxxxxxxxxxxx,
connor_a@xxxxxxxxxxx <connor_a@xxxxxxxxxxx> typed:
Hi everyone,

What is the best way to add more address leases in DHCP to support
multiple subnets for 400 - 600 users in a single building?

On idea would be to create a DHCP superscope with RRAS enabled to
perform the routing between subnets but this would place too heavy
load on the DC which is also the DHCP server.

I'm thinking more toward using DHCP relaying on the switches but not
sure if the switches can perform the layer 3 routing.

Any suggestions most appreciated.

Thanks!


Just add a scope for that subnet. If the router doesn't handle IP helper or
relay, you can setup a relay agent on the other subnet(s) and specify the
DHCP server at the main office. You really don't want to multihome a DC (if
that was what you were implying). This will introduce numerous errors with
AD and the clients if not configured properly. If you were not implying
that, good.

For the relay agent on the other subnet, you can install RRAS on a server
and enable the Relay agent. However, if you have the possibility of adding
another server at another subnet, why not just configure DHCP over there?

--
Regards,
Ace

This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT,
MVP Microsoft MVP - Directory Services
Microsoft Certified Trainer

Infinite Diversities in Infinite Combinations





.

Relevant Pages

  • Re: DHCP adres in superscope
    ... A superscope is an administrative grouping of scopes that is used to support ... Before passing a DHCP message on to a DHCP server, ... message informs the DHCP server of the subnet ID of the originating subnet ...
    (microsoft.public.cert.exam.mcse)
  • Re: DHCP problem
    ... I agree with all your points but have inherited the network the way it is ... I've tried giving a NIC 2 IP addresses and then have it give out DHCP ... I think I'll try harder to convince everyone involved that a single subnet ... >> different subnets....ideally from a single DHCP server. ...
    (microsoft.public.windows.server.general)
  • Re: wireless router off a normal router
    ... > seem that a router running DHCP and NAT services has essentially ... I think the issue is obscured by the fact that many boxes are both NAT ... The NAT router defines the range of the subnet. ... So if you'd have a second DHCP server active on that same subnet, ...
    (comp.sys.mac.comm)
  • RE: 2 x DC, 2 sites and NT4 servers same domain HELP
    ... with regards to the dhcp and dns on a second ... site, i understand i can install dhcp on a different subnet, but would it be ... a good idea to install dns on this server too, or should i keep it to only ...
    (microsoft.public.windows.server.migration)
  • Re: DHCP
    ... Does the router change the contents of the DHCPDiscover packet, ... dhcpdiscover packets don't know what subnet they are on.... ... the dhcp server know with which scope the server should lease the new IP ...
    (microsoft.public.win2000.networking)