DHCP Issue Server not on address pool

Fo reasons only known to BT I have had to give a domain controller server 2003. A public IP address and route to it using a BT "Business" Hub. As they dont support NAT. After that my DHCP has stopped working? range being 191.168.100.10 to .254. The server is now out of this range. Do i need a superscope. All other non BT ADSL networks i work on have the server within the scope
techies123Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

arnoldCommented:
Yes. or you need to have two nics one on the public side and one on the private side.
Not sure what the issue is that lead them to tell you to make such adjustments.

The issue with superscopes, you would need to have a relay agent that would mark the segment on which the IP is to be allocated.
You could add two IPs on the same network interface.

It is rather peculiar that you now have your DC exposed to the net.
0
techies123Author Commented:
It was because the client had a range of 5 ip's i had to set up the public IP against the MAC address of the server. The only way it could be done apparently!

too advoid cabling

how do i do

You could add two IPs on the same network interface

?
0
arnoldCommented:
the other option is configure the SCOPE of the DHCP server to match the public IPs the client gets and allocate that.

Make sure to enable windows firewall. But the ports needed for the data sharing will also be available on the Net accessed public IPs.

Is this server supposed to connect the LAN to the Net?


Does the client have a router that they can use between the external feed and the LAN which will handle the NAT.

It sounds as though the connection being dropped is a bridge and requires a router either in the form of a computer with two nics, which it sounds the system you used does not have.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
IT Pros Agree: AI and Machine Learning Key

We’d all like to think our company’s data is well protected, but when you ask IT professionals they admit the data probably is not as safe as it could be.

techies123Author Commented:
Just need DHCP to work on Single NIC with the server with a public IP and clients internal IP?
0
arnoldCommented:
how are you connecting the clients to the server if all the server has is a public IP?

Within the configuration of the network interface on the server, add a second IP that is on the same segment as the LAN
This way you will have an IP in each.

localarea connection
pulbicIP Public_netmask Public_ip_default_gateway
192.168.100.1 255.255.255.0

In the DHCP scope, presumably you will be pushing the default gateway as the IP on the DHCP server.
0
techies123Author Commented:
Have added the 192.168.100.1 to the network card of the server. Will have to test tomorrow if it will work.
I am pushing the DG as the router address which is the router IP
Thanks
0
arnoldCommented:
The internal IPs have no path to the router IP as the default gateway.

All they know is 192.168.100.x
Since the router does not do NAT, it has no idea where 192.168.100.x is or how to get to it.

It would be similar to me telling you go to 100 main street
Without the town information, the above reference is meaningless.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Routers

From novice to tech pro — start learning today.