Adding port forward rule for new server - Editing config file of a Cisco Router

1) Log into the router with IP address of the router using Putty (SSH). 

2) In command line type in the following:

#conf t

Enter configuration commands, one per line.  End with CNTL/Z.

(config)# ip nat inside source static tcp IP_of_new_server 3389 192.168.1.200 External_RDP_port extendable

(config)#exit

#copy running-config startup-config

destination filename [startup-config] ?          (Hit enter)

To view the config file

#show running-config

press space key to continue

CTL+C to exit

Remote Desktop Issues logging into Windows 2012 server? Common/advanced steps to troubleshoot

1. Make sure you have RDP enabled in the Remote options tab of Computer Properties. 
    ControlPanel - > System -> Remote

2. Make sure the appropriate user accounts are added there. 

3. Check if RDP service is running in Services. If not START it on the server you are trying to RDP.

4. Enable the rule that permits access through the Windows Firewall.

  - Search for Firewall and open “Windows Firewall and Advanced Security”.

- Find the rule “Remote Desktop – User Mode TCP-in” and ENABLE Rule

5. Check the TCP and UDP local ports are 3389 and profile set to All.

6. Start Registry Editor. Locate and then click the following registry subkey:  HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp\PortNumber

Check the port number is set to 3389