Question : Can't Reach the port 445 for my domain controler / Change the 445 port

Hi everyone,

I've got a little problem with the port 445. I have to external domain controler wich i try to connect to.
I used telnet mydomaincontrol 445 and the connexion fail. But when i try it with my other ADSL line, it work. So i don't think the port is closed on the external side.

I opened the port 445 on my firewall rules but impossible to access to that port.
I'm with a french ISP called orange, its a fiber optic connexion.

Any idea how to reach that port ?

Or maybe i can change the port ? transfert the 445 port on an other port with a nat rule. But how the others domain control (internal) would know it ?

Thanks

Answer : Can't Reach the port 445 for my domain controler / Change the 445 port

That would be a preferred model.  An AD at each location doing a branch to branch VPN.  Mobile users would use a VPN client on their laptops to connect to the main company firewall/VPN concentrator.