Home Lab Network Configuration Help

[shameem2k]

I have a XenServer Hypervisor which is connected to my home wireless router and has a IP assigned by the router 192.168.80.x

The router has DHCP enabled which assigns IP to my home devices. I assigned one of the IP to the Hypervisor and configured as static based on MAC on the home router.

I have installed multiple VMs on the XenServer that include 3 Windows Server 2012 running the below services:

VM 1 - AD/DHCP/DNS
VM 2 - RRAS and NAT
VM 3 - Member Server joined to the domain.

The NAT Server has 2 virtual NICs configured as Public and Private interface.

Public Interface has IP from my home router - 192.168.80.x
Private Interface has a internal IP - 192.168.100.x

I setup the NAT server to allow internet access for VMs and also configured Port forwarding to allow RDP to my DC from my personal devices connected to my home wireless router network i.e 192.168.80.x

On the DC I configured DHCP to assign IPs to all the VMs. i.e 192.168.100.x

All works fine, I'm able to access internet from VMs and also able to RDP from my personal laptop to the DC.

But I have a problem, my personal devices on my home wireless network have started getting IP addresses assigned by the VM DHCP server on the lab network which is on a different subnet - 192.168.100.x and are now unable to connect to internet.

I'm confused how this would have happened, Im now forced to assign static IP (192.168.80.x) to all my personal devices to be able to access internet.

• 
  Please can someone suggest a better way to configure the network that would basically work like :
  
  DHCP Server should only assign IP to the VMs on the Private subnet
  
  All VMs should be able to access internet (via my wireless router) and also be able to communicate within the private subnet.

My Personal devices should be able to access internet and also able to get IP address from the router only. I need to be also able to RDP from my personal devices to the VMs on the other subnet.

My Network Setup

Internet
|
Wireless Router --------------------------------------------
192.168.80.254 |
| physical network
LAN machines (including Hyper-V host) |
192.168.80.x dg 192.168.80.254 --------------
|
192.168.80.x dg 192.168.80.254 external virtual network
RRAS/NAT
192.168.100.254 dg blank ---------------------
| private virtual network
virtual machines |
192.168.100.x dg 192.168.100.254 ------------


Appreciate if someone can help with detailed step by step guide in achieving this as I'm preparing for my Citrix exams and would need this lab to be setup soon.

 

[boosted1g]

For VM DHCP, is your subnet 255.255.255.0 or 255.255.0.0?

 

[shameem2k]

Hi, my VM DHCP subnet mask is 255.255.255.0 and my router subnet mask is also the same.

 

[boosted1g]

Hmmmm, only thing else I could think of that would cause this is bad setting in the NAT server for how the adapters are bridged.

Now you said your wireless devices get dhcp from VM DHCP, what about wired? Do wired already have a static assigned IP either at the machine or router?

 

[shameem2k]

There is just 1 wired connection that is connected to my home router which is my server running the hyper-visor - XenServer. It has a Static IP assigned - 192.168.80.x / 255.255.255.0