Cannot get port forwarding to work - what am I doing wrong?

Question

Hi All,
I am sure I am doing something wrong, but can't see what.   All I need to be able to do is to port forward to one of my virtual machines web port on my file server.
So, scenario is:
Windows 2012 R2 Server.    IP address: 10.0.0.2      I have a VM running on there called spatial - it's IP address is 10.0.0.17
Before moving to Windows 2012 R2 server and virtualization - I had multiple servers and to port forward, simply changed the listening port of IIS to another port from standard - say 81.  Then in my router, port forwarded web traffic to port 81 on that
server - worked like a charm.
Now however, when I have tried to do the same thing (10.0.0.17 web server listens on port 81) - the page times out.  If I leave it at port 80 - the server2012 IIS page answers.
I guess I need to create some sort of gateway on the 2012 server to allow traffic to flow through to port 81 on the VM - but not sure how to?  Can anyone help?  Is there a simple walk through guide someone has written in order to achieve this -
as I am sure is a very common request.  I have googled, but can't find exactly what I am looking for.
thanks.

Answer 1

Hi,
The Hyper-V 2012r2 virtual switch have the extension security ability, please use the following PowerShell cmdlet to confirm your IIS vm virtual switch not enable the related
security settings:
Get-VMSwitchExtension -VMSwitchName "virtual switch name"
=================================================
For example:
Get-VMSwitchExtension -VMSwitchName "External network MSFT"
Id                 
: EA24CD6C-D17A-4348-9190-09F0D5BE83DD
Name               
: Microsoft NDIS Capture
Vendor             
: Microsoft
Version            
: 6.3.9600.16384
ExtensionType      
: Monitoring
ParentExtensionId  
ParentExtensionName :
SwitchId           
: 0686a779-c79c-4fd0-9971-f9eb330ca089
SwitchName         
: External network MSFT
Enabled            
: False
Running            
: False
ComputerName     
  : SERVERLAB-02
Key                
IsDeleted          
: False
Id                 
: E7C3B2F0-F3C5-48DF-AF2B-10FED6D72E7A
Name               
: Microsoft Windows Filtering Platform
Vendor             
: Microsoft
Version            
: 6.3.9600.17042
ExtensionType      
: Filter
ParentExtensionId  
ParentExtensionName :
SwitchId           
: 0686a779-c79c-4fd0-9971-f9eb330ca089
SwitchName         
: External network MSFT
Enabled            
: True
Running            
: True
ComputerName       
: SERVERLAB-02
Key                
IsDeleted          
: False
===================================================
The related KB:
Create Security Policies with Extended Port Access Control Lists for Windows Server 2012 R2
http://technet.microsoft.com/en-us/library/dn375962.aspx
Enabling Hyper-V Extensible Switch Extensions
http://msdn.microsoft.com/en-us/library/windows/hardware/hh598144(v=vs.85).aspx
Enumerating Hyper-V Extensible Switch Extensions
http://msdn.microsoft.com/en-us/library/windows/hardware/hh598146(v=vs.85).aspx
Hope this helps.
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