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Router Firewall Configuration

Applies To: Windows SBS 2008

ImportantImportant
It is recommended that you open ports on the router only if they support the requirements of your business.

Required ports for server services and applications

The following table lists ports that must be open on your router firewall to allow specific types of data through the firewall. The IP address of the server that is running Windows SBS 2008 is the forwarding address that you use when you set up the port.

 

Service or Application Port Number Purpose

SMTP

25

Simple Mail Transfer Protocol (SMTP) is a TCP/IP protocol for sending messages from one computer to another on a network. This protocol is used on the Internet to route e-mail messages.

HTTP

80

Hypertext Transfer Protocol (HTTP) is a protocol for carrying requests from a browser to a Web server and for transporting pages from Web servers back to the requesting browser.

HTTPS

443

Secure Hypertext Transfer Protocol (HTTPS) is a version of HTTP that encrypts data by using Secure Sockets Layer (SSL).

HTTPS

987

This Secure Hypertext Transfer Protocol (HTTPS) port makes Windows SharePoint® Services viewable through Remote Web Workplace.

Additional ports for server services and applications

The following table lists additional ports that you must open only if you enable the Windows SBS 2008 service or application. The IP address of the server that is running Windows SBS 2008 is the forwarding address that you use when you set up the port.

 

Service or Application Port Number Purpose

FTP Data

FTP Control

20

21

File Transfer Protocol (FTP) is the standard Internet protocol for downloading or transferring files from one computer to another. Both ports are used for FTP and must be open for FTP to work.

VPN

1723

A virtual private network (VPN) is a network that connects one or more computers to a large network, such as a business network, by using the Internet. A VPN is encrypted, which helps ensure that only authorized people can access it.

RDP

3389

Microsoft Remote Desktop Protocol (RDP) is a standard set of communication rules that enables you to use your computer to connect to a computer that is located elsewhere.

Ports required by installed applications and services

If you install line-of-business applications or other applications and services, you may need to open additional ports to allow specific types of data through the router firewall. You must get the port information from the documentation for the application or service or from a list of well-known ports.

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