Which port does Remote Assistance use?

TCP port 3389
Remote Assistance uses the Remote Desktop Protocol (RDP) to establish a connection between a user requesting help and a helper providing it. The RDP uses TCP port 3389 for this connection.

How do I specify a port in Remote Desktop?

To Alter the Port on the client side:

1. Go to the Start menu and click on Run.
2. On the Run menu type MSTSC and click Enter.
3. In the RDP window, in the Computer box, scroll to the computer name or IP to which you wish to connect.
4. Add a “:Port” (without the quotes) where “Port” is the decimal value of the destination port.

How do I open port 3389 remotely?

Step 2: Open Remote Desktop port (port 3389) in Windows firewall. Go into the control panel in your computer and then into ‘System and security’ and then into ‘Windows Firewall’. Click ‘Advanced settings’ on the left side. Ensure that ‘Inbound Rules’ for Remote Desktop is ‘Enabled’.

Can I use any port for remote desktop?

You can use any port that’s not already in use on your computer; your choice. To get a list of ports currently being used (listening), you can use Netstat -a at a command prompt. Here’s a list of TCP ports used by various software and services to help you make your choice.

What kind of ports are used for Remote Assistance?

The ports used by a Remote Assistance session depend on which version of Windows is running on the two computers involved in the session. Specifically: Windows 7 to Windows 7, Windows 7 to Windows Vista, or Windows Vista to Windows Vista Dynamic ports allocated by the system in the range TCP/UDP 49152-65535

Do you need to open port 3389 for Remote Assistance?

To allow users within an organization to request help outside your organization using Remote Assistance, port 3389 must be open at the firewall. To prohibit users from requesting help outside the organization, this port should be closed at the firewall. Here is an article below may be helpful to you.

What do you mean by Remote Assistance protocol?

[MS-RA]: Remote Assistance Protocol. Specifies the Remote Assistance Protocol, which is used after a remote assistance connection is established between two computers. This page and associated content may be updated frequently.

Can you use remote assist through a firewall?

Remote Assist (MSRA) through a firewall? I have a requirement to offer remote assist to clients on a client site with a firewall in-between. As I understand it mrsa uses dynamic ephemeral ports. So for this to work I would need to open the firewall for all ephemeral ports.