Network ports used for Microsoft Dynamics CRM 4.0
Published: April 11, 2008
This article describes the ports that are used for Microsoft Dynamics CRM. This information is useful and helpful as you configure your network when users connect through a firewall.
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Network ports used for the Microsoft Dynamics CRM Web application |
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Network ports used by SQL Server running the Microsoft Dynamics CRM Connector for SQL Server Reporting Services server roles |
Network ports used for the Microsoft Dynamics CRM Web application
The following table lists the ports used for a server that is running a full-server installation of Microsoft Dynamics CRM. Moreover, with the exception of the Microsoft SQL Server server role, and the Microsoft Dynamics CRM Connector for SQL Server Reporting Services server role, all server roles are installed on the same computer.
| Protocol | Port Number | Description | Explanation |
|---|---|---|---|
|
TCP |
80 |
HTTP |
Default Web application port. This port may be different as it can be changed during Microsoft Dynamics CRM Setup. For new Web sites, the default port number is 5555. |
|
TCP |
135 |
MSRPC |
RPC endpoint resolution |
|
TCP |
139 |
NETBIOS-SSN |
NETBIOS session service |
|
TCP |
443 |
HTTPS |
Default secure HTTP port. The port number may be different from the default port. This secure network transport must be manually configured. Although this port is not required to run Microsoft Dynamics CRM, it is strongly recommended. For information about how to configure HTTPS for Microsoft Dynamics CRM, see the article "Make Microsoft Dynamics CRM 4.0 client-to-server network communications more secure." |
|
TCP |
445 |
Microsoft-DS |
Active Directory required for Active Directory access and authentication |
|
UDP |
123 |
NTP |
Network Time Protocol |
|
UDP |
137 |
NETBIOS-NS |
NETBIOS name service |
|
UDP |
138 |
NETBIOS-dgm |
NETBIOS datagram service |
|
UDP |
445 |
Microsoft-DS |
Active Directory required for Active Directory access and authentication |
|
UDP |
1025 |
Blackjack |
DCOM, used as an RPC listener |
Network ports used by SQL Server running the Microsoft Dynamics CRM Connector for SQL Server Reporting Services server roles
The following table lists the ports that are used for a computer that is running SQL Server and has only SQL Server and the Microsoft Dynamics CRM Connector for SQL Server Reporting Services server roles installed.
| Protocol | Port Number | Description | Explanation |
|---|---|---|---|
|
TCP |
135 |
MSRPC |
RPC endpoint resolution |
|
TCP |
139 |
NETBIOS-SSN |
NETBIOS session service |
|
TCP |
445 |
Microsoft-DS |
Active Directory required for Active Directory access and authentication |
|
TCP |
1433 |
ms-sql-s |
SQL Server sockets service. This port is required for access to SQL Server. Note that, this number may be different if you have configured your SQL Server to use a different port number. |
|
UDP |
123 |
NTP |
Network Time Protocol |
|
UDP |
137 |
NETBIOS-NS |
NETBIOS name service |
|
UDP |
138 |
NETBIOS-dgm |
NETBIOS datagram service |
|
UDP |
445 |
Microsoft-DS |
Active Directory required for Active Directory access and authentication |
|
UDP |
1025 |
Blackjack |
DCOM, used as an RPC listener |
