ESXi 5.5 Home Lab - Networking Questions (Overall Setup / Configuration / DNS issues)

Hi,

I am fairly new to vSphere / ESXi and have been trying to setup a home lab for testing / learning purposes.  I would like to make sure my network is sound.  I created a diagram to help illustrate my current setup.  I own vsphere essentials 5.5 kit.  All servers are Windows Server 2012 R2

Goal:

• Setup an internal network strictly for testing - won't conflict with LAN home network
• Setup an external network (LAN home network) - so I can control which VMs have access to Internet if they should need it
• Setup an RD Gateway on my EDGE server so I can access and work in my Home Lab remotely

Things I've done so far:

• Setup ESXi Hosts
  • ESXi01 - 192.168.2.x/24 (5 NICs)
  • ESXi02 - 192.168.2.x/24 (5 NICs)
  • Since I will be using VLANs to differentiate between internal and external networks I set each ESXi host's VLAN ID to trunk mode (4095) - Think this was right to do.
• Setup pfSense virtual router to allow ESXi hosts to communicate
  • I own the essentials kit so not sure if distributed switches are allowed
  • Using pfSense allowed the vCenterServer on ESXi01 host to communicate with DC01 on ESXi02 (able to join corp.local.com domain)
• Configured HP Procurve 24-port switch
  • This will handle the VLANs
  • VLAN ID 2 - External Network
  • VLAN ID 3 - Internal Network
• Setup EDGE Server
  • External NIC
    • IP - 192.168.0.x/24
    • GW - 192.168.0.1
    • DNS - ISPs DNS Servers
  • Internal NIC
    • IP - 192.168.2.x/24
    • GW - left blank
    • DNS - 192.168.2.12 (DC01)
  • Noticed when logged into this machine the following occurs when using NSLOOKUP command - the DNS request times-out.  It will eventually get to google in an IE browser but takes too long.  Not sure how to fix this.  The Advanced Settings have Internal-LAN first so it will look to internal DNS server (DC0 1) first.  I don't have the internal DNS Forwarders setup and it is on the internal VLAN ID so it won't have access to the internet.  What is the best way to resolve this?  If there is a way to set this up so any internet traffic knows to go out the external-LAN and any internal traffic stays internal.  I'm a bit confused at this point.  Any help would be greatly appreciated.