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Note to Self: Windows Vista and Windows Server 2008 Onward Change in Dynamic Port Assignments

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All these years, my techblogs are one big personal knowledgebase of information that I encountered at work, and I know will encounter again. Instead of relying on Microsoft and other websites to always have the information available (not necessarily, if the product is no longer supported), I just write the information down on my techblog. So basically, my techblogs are first and foremost my own personal reference. For these types of writeups, I will add “Note to Self” on the title. I hope you, the reader, would also find these notes useful.

Windows Vista and Windows Server 2008 onwards are now uses dynamic port range 49152-65535

To display dynamic IP port assignments:
netsh int ipv4 show dynamicport tcp
netsh int ipv4 show dynamicport udp

To adjust the dynamic port range:
netsh int <ipv4|ipv6> set dynamic <tcp|udp> start=number num=range
Example: netsh int ipv4 set dynamicport tcp start=10000 num=1000


Source:
The default dynamic port range for TCP/IP has changed in Windows Vista and in Windows Server 2008 http://support.microsoft.com/kb/929851

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Written by jpaloma

January 20, 2011 at 1:13 PM

Posted in Networking

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