WCF Service EndPoint Address

Peter Annandale 21 Reputation points

Can anyone please expalin this to me, it just seems strange and i'm having issues with an application.

  1. My endpoint service conenction is: http://RRAPP01PROD:8101/DynamicsAx/Services/RRSalesOrderAIF
  2. The WCF Service generates correctly in Visual Studio to the above address and produces the Service Reference file
  3. If I open the Reference file and scroll to the bottom the GetEndPointAddress is returning an EndPointAddress of net.tcp://rrapp01prod:8201/DynamicsAx/Services/RRSalesOrderAIF
  4. If I open Postman and enter the endpoint address of http://RRAPP01PROD:8101/DynamicsAx/Services/RRSalesOrderAIF it connects and returns info abount the connection in XML format, if I browse the information I noted that soap12:address is "net.tcp://rrapp01prod:8201/DynamicsAx/Services/RRSalesOrderAIF"

My question is why is the address port numbers different?? (8101 vs 8201)


Microsoft Technologies based on the .NET software framework.
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Accepted answer
  1. Lan Huang-MSFT 26,686 Reputation points Microsoft Vendor

    Hi @Peter Annandale ,
    Because WCF net.tcp and HTTP cannot use the same port.

    The TCP/IP protocol uses a 16-bit number, called a port, to differentiate connections to multiple network applications running on the same machine. If an application is listening on a port, then all TCP traffic for that port goes to that application. Other applications cannot listen on that port at the same time.

    Many protocols have a standard or default port number that they use. For example, the HTTP protocol typically uses TCP port 80.

    Best regards,
    Lan Huang

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