What am I missing?
SBS 2008 SP2 installed. Fully patched windows and HP drivers / firmware / PSP. 172.16.1.10
Windows 2003 SP2 member server joined to domain. Fully Patched. 172.16.1.11
Need to be able to RDP to 172.16.1.11 from the outside to run stock control system.
Can RDP to 172.16.1.11 when inside the LAN. When VPN'ing into the network from outside get error message that is attached and cannot RDP to 2003 member server
VPN further notes
1st way of VPN: PPTP VPN from a laptop from any internet connection to the SBS 2008 server with port 1723 forwarded on the firewall. VPN works fine and allows mapped drives and off line sync
2nd way of VPN: Satelitte site has a 'site to site' VPN set up. Their network is 172.16.3.x. Sync, mapped drives and emails work fine as Windows 7 firewall configured to trust and allow UDP and TCP 135 - 139 to the 172,16.1.x network
I can't figure out why I cannot RDP to 172.16.1.11 from the outside when I can on the inside.
Any pointers (and I'm guessing that I am missing something simplistic) would be very gratefully recieved