Windows Server 2012 R2: Ephemeral ports (a.k.a. Dynamic ports) hotfixes

Applies to:

Windows Server 2012 R2

Ephemeral port also known as (a.k.a.) Dynamic ports related hotfixes for “Windows Server 2012 R2”:

Install 3149157 Reliability and scalability improvements in TCP/IP for Windows 8.1 and Windows Server 2012 R2

tcpip.sys 6.3.9600.18264

3123245 Update improves port exhaustion identification in Windows Server 2012 R2

Netstat -anoq

// The q is the new switch backported from Windows Server 2016.

2897602 FIX: TCP connections that use ephemeral loopback addresses are dropped suddenly in Windows

//  For apps that uses loopback addresses (127.0.0.x)

I h.t.h.,



Detecting ephemeral port exhaustion

Server "Hangs" and Ephemeral Port Exhaustion issues

Port Exhaustion and You (or, why the Netstat tool is your friend)

Dynamic Ports in Windows Server 2008 and Windows Vista (or: How I learned to stop worrying and love the IANA)

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