[DJRepresent]

Hi,


I'm running multiple virtual machines on my desktop computer (Windows 2003, 2008, several XP VMs, etc). The reason being is that I want to learn about configuring high-end networks and figure this setup would be a practical way to approach it.


Anyways, my desktop is connected to a Linksys router whose IP address is 192.168.1.1. I'd like to set up my 2003 server to have a DHCP server with an address of 10.0.0.1, and have my client VMs getting their IP addresses from the server. The issue I've been having is I can't figure out how to get the server to communicate with the Linksys router once I manually set the server's IP address to 10.0.0.1.

Any ideas?

 

[2xg]

Hi DJRepresent,

First thing you need to do is go the Admin Console of the Router and change 192.168.1.1 to 10.0.0.1, have you done this yet? Then you can have your Router assigned a DHCP addresses range of 10.0.0.3 to 10.0.0.30 for the client computers. or will you be setting up a DHCP server in one of your Server's. Make sure that you assign a Static IP, make exlusions of needed if you have any printer servers in the network, of course they'll need Static IP assigned(don't do Auto IP on the printer).
Then try pinging the router and see if you'll get a good reply back.

Please post back with any results.

 

[DJRepresent]

Grump,


Here's the thing - I would rather have the router not assign addresses to my virtual machines. Instead I would like the client VMs to get IP addresses from the server. The server would still be able to see the router and all VMs would be able to reach the Internet.

Any ideas?

 

[vladimirb]

Disable DHCP on router and install DHCP on Windows Server 2003 or 2008 - your choice...
Use static IP addressing for Servers, and dynamic IP addresses for clients...
In DHCP, make sure you exclude static IP addresses you made for Servers.
You make scope just as 2xgrump said in above link...
Default gateway should be routers IP address...
Router: 10.0.0.1
DHCP server: 10.0.0.2
Domain Controller/DNS: 10.0.0.3
You exclude 10.0.0.1-3 in DHCP

 

[2xg]

Disable DHCP on router and install DHCP on Windows Server 2003 or 2008 - your choice...
Use static IP addressing for Servers, and dynamic IP addresses for clients...
In DHCP, make sure you exclude static IP addresses you made for Servers.
You make scope just as 2xgrump said in above link...
Default gateway should be routers IP address...
Router: 10.0.0.1
DHCP server: 10.0.0.2
Domain Controller/DNS: 10.0.0.3
You exclude 10.0.0.1-3 in DHCP

Hi DJ,

I have also mentioned this in my initial reply to you, an option "or will you be setting up a DHCP server in one of your Server's". Pls. follow our directions and you shd be okay. Do you need some guide on how to install and configure DHCP on one of your servers?

Any more concerns, pls. post back.

 

[DJRepresent]

OK gotcha, I take it that I HAVE to use the router. The only concern is that if I disable DHCP on the router, then my desktop computer wouldn't be able to get an IP address, let alone any device that physically connects to the router - such as a laptop or cell phone. Ideally what I would want is to have two DHCP servers for redundancy, but leave my physical devices to only having one through the router, since I wouldn't have my virtual server running at all times.


The thing is that this stuff's still pretty new to me, even though I did set up a network with one server / 8 client computers not too long ago. That time I did not set up DHCP on the server, but rather let the router delegate addresses. The client wasn't serious about using the server to the fullest extent either, and honestly they could have gotten away with just a client network (but still insisted on a server).

 

[vladimirb]

Hello...
If you want to use two DHCP servers, the best option is to use 80/20 solution...
One DHCP [Server] should be leasing 80% of IP address range, and another DHCP [router] should lease 20% of IP address range. This way, if one DHCP fail, the other could take its job and continue with leasing...
You set up manual IP address for desktop PC also and you shouldn't worry about getting on the Internet... Even if DHCP on the router is disabled, you will still be able to access the Internet because you have a valid manually assigned IP address...

 

[2xg]

Hello...
If you want to use two DHCP servers, the best option is to use 80/20 solution...
One DHCP [Server] should be leasing 80% of IP address range, and another DHCP [router] should lease 20% of IP address range. This way, if one DHCP fail, the other could take its job and continue with leasing...
You set up manual IP address for desktop PC also and you shouldn't worry about getting on the Internet... Even if DHCP on the router is disabled, you will still be able to access the Internet because you have a valid manually assigned IP address...

or if you really one to have (2) DHCP installed on 2 servers for redundancy purpose, disable (1), and if the other server fails enable your backup DHCP server.

 

[vladimirb]

or if you really one to have (2) DHCP installed on 2 servers for redundancy purpose, disable (1), and if the other server fails enable your backup DHCP server.

Nice thought

 

[2xg]

Nice thought

A little typo error here vladimirb...oops..."or if you really one to have " I meant "or if you really want to have.

 

[akaki]

Hi 2xgrump & Vladimirb,
Thanks to both of you. Learned some important things from your conversation.
in my system, DHCP configured in server. Also DHCP installed in router. But IP range is different.
Thanks anyway..

 

[vladimirb]

I am glad you have sorted things right mate :grin:
If you ever need help again, you know where you can find us :wave:

 

[bilbus]

if you are using vmware server / workstation you can isolate dhcp to the vms.

You do not want to disable dhcp, just put the vms on their own network, on a diff subnet.