help me understand

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Brad

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I have a small office with one server 2003 running as the Domain Controller
and DHCP and routing services. It is currently multihomed and works just
fine. The layout is:

internet -> linksys router -> Server (external nic) -> Internal Nic (server)
-> switch -> Client PCs and printers.

I've been reading that multihomed DC's are not a good idea.

If I change my network to be non-multihomed, what handles all of the
routing. Say I want to RDP into each client PC, the PCs are getting their IP
address from the DC since it is a DHCP server, the linksys won't know the
client IP address. So does the Linksys pass the external requests to the
server, then the server passes the requests to the client PC.

In my mind, the server is no longer "in charge" if it doesn't have the
direct connection between the router and the internal network.

The client PC's have their DNS pointing to the server.

Any guideance is appreciated.
 
Re: help me understand


"Brad" <Brad@discussions.microsoft.com> wrote in message
news:C9EFCD14-3B7A-48E0-BC58-529A108734AA@microsoft.com...
>I have a small office with one server 2003 running as the Domain Controller
> and DHCP and routing services. It is currently multihomed and works just
> fine. The layout is:
>
> internet -> linksys router -> Server (external nic) -> Internal Nic
> (server)
> -> switch -> Client PCs and printers.
>
> I've been reading that multihomed DC's are not a good idea.
>
> If I change my network to be non-multihomed, what handles all of the
> routing. Say I want to RDP into each client PC, the PCs are getting their
> IP
> address from the DC since it is a DHCP server, the linksys won't know the
> client IP address. So does the Linksys pass the external requests to the
> server, then the server passes the requests to the client PC.
>
> In my mind, the server is no longer "in charge" if it doesn't have the
> direct connection between the router and the internal network.
>
> The client PC's have their DNS pointing to the server.
>
> Any guideance is appreciated.

Here are a couple of ways to launch Remote Desktop sessions
on internal PCs:

a) By setting up a VPN. The RDP client will then behave as if it
was connected to the internal network, which will enable it to
reach the RDP host by its NetBIOS name.

b) By assigning fixed internal IP addresses and individual RDP
port addresses, e.g. like so
PC10 192.168.55.10 Port 19010
PC11 192.168.55.11 Port 19011
PC19 192.168.55.19 Port 19019
You need to create one tunnel for each PC in your router/
firewall. You also need to modify this registry location on
each RDP host to set the desired port number. It is set to
3389 by default:
HKLM\System\CurrentControlSet\Control\TerminalServer\WinStations\RDP-Tcp\PortNumber
Remember to reboot the PC after making the change.
On the RDP client you must use this command:
mstsc /v:aaa.bbb.ccc.ddd:19010
where aaa.bbb.ccc.ddd is the external IP address of the
RDP host and 19010 is the chosen port number.
 
Re: help me understand

Correct, it is not recommended to use DC as a router or running on a multihomed computer. What you can do is setup switch between the router and the network. Setup DNS and DHCP on the DC. If all computers and router are in the same subnet. you should be fine.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"Brad" <Brad@discussions.microsoft.com> wrote in message news:C9EFCD14-3B7A-48E0-BC58-529A108734AA@microsoft.com...
I have a small office with one server 2003 running as the Domain Controller
and DHCP and routing services. It is currently multihomed and works just
fine. The layout is:

internet -> linksys router -> Server (external nic) -> Internal Nic (server)
-> switch -> Client PCs and printers.

I've been reading that multihomed DC's are not a good idea.

If I change my network to be non-multihomed, what handles all of the
routing. Say I want to RDP into each client PC, the PCs are getting their IP
address from the DC since it is a DHCP server, the linksys won't know the
client IP address. So does the Linksys pass the external requests to the
server, then the server passes the requests to the client PC.

In my mind, the server is no longer "in charge" if it doesn't have the
direct connection between the router and the internal network.

The client PC's have their DNS pointing to the server.

Any guideance is appreciated.
 
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