changeing dynamic ports
hi, i would like change dynamic ports in w7. i can do it by NETSH i.e.: NetSh INT IPV4 SET DynamicPort TCP Start=1024 num=65535 NetSh INT IPV4 SET DynamicPort UDP Start=1024 num=65535 i can change (like in win xp) registry key for RPC protocol, putting ports range in: HKLM\Software\microsoft\rpc\Internet ports i do not know if i can configure only NTSH or i have to configure RPC or both? what if i have two different ranges in NETSH and in RCP? in XP i configure only RCP range (there is no NETSH) what else i have to configure to change dynamic ports range?Voytas
June 28th, 2012 8:29am

Hi, You are confused with the two methods, they are two different conceptions, I would share the following articles with you to make it clear: Methods of setting the Dynamic Port range to be used by Domain Controllers http://social.technet.microsoft.com/Forums/en-US/winserverDS/thread/7c2aa64e-84a0-4cc3-b6e8-690bb150a735/ The default dynamic port range for TCP/IP has changed in Windows Vista and in Windows Server 2008 http://support.microsoft.com/kb/929851 How to configure RPC dynamic port allocation to work with firewalls http://support.microsoft.com/kb/154596Alex Zhao TechNet Community Support
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June 29th, 2012 1:15am

thx for tip and info. i checked one scenario (w7 with disabled firewall), set RPC ports in registry 60000-61000, leave default NETSH dynamic ports range (49152 and up) and i expected that dynamic ports started from 60000 but i can see only 491xx and up. so i am confused. i read in posts you provided that netsh set firewall but real config of dynamic ports is in rpc registry. and nother thing: how can i easly tests dynamic ports ? Voytas
June 29th, 2012 3:49am

Hi, Dynamic ports are allowed open to this machine within the firewall, if you want to change the range, you need use Netsh command, and you could check the result with Netsh command: Dynamic Ports in Windows Server 2008 and Windows Vista http://blogs.technet.com/b/askds/archive/2007/08/24/dynamic-client-ports-in-windows-server-2008-and-windows-vista-or-how-i-learned-to-stop-worrying-and-love-the-iana.aspx Alex Zhao TechNet Subscriber Support If you are TechNet Subscription user and have any feedback on our support quality, please send your feedback here.Alex Zhao TechNet Community Support
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July 1st, 2012 9:37pm

i am still confused: 1. rpc port are used on host where configured when other systems connect to? 2. dynamic ports (netsh) are used when connecting to other system (other rpc server)? Voytas
July 4th, 2012 4:24am

Hi, Remote Procedure Call (RPC) dynamic port allocation is used by remote administration applications such as Dynamic Host Configuration Protocol (DHCP) Manager, Windows Internet Name Service (WINS) Manager, and so on. RPC dynamic port allocation will instruct the RPC program to use a particular random port in specific range. Dynamic port allocation is used to configure the dynamic port ranges being utilized by Windows built-in firewall. Hope this makes it clear. Alex Zhao TechNet Subscriber Support If you are TechNet Subscription user and have any feedback on our support quality, please send your feedback here.Alex Zhao TechNet Community Support
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July 4th, 2012 10:39pm

if rcp allocation is i.e 45678-46678 and netsh is 1024-2024 what then? what range should i put in firewall: both? rcp? Voytas
July 5th, 2012 9:00am

Hi, Based on my understanding, if you are want to control RPC communications , the RPC dynamic ports is what you need to concentrate on. Alex Zhao TechNet Subscriber Support If you are TechNet Subscription user and have any feedback on our support quality, please send your feedback here.Alex Zhao TechNet Community Support
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July 8th, 2012 11:40pm

Hi, I am just writing to check the status of this thread. Was the information provided in previous reply helpful to you? Regards, Alex Zhao TechNet Subscriber Support If you are TechNet Subscription user and have any feedback on our support quality, please send your feedback here.Alex Zhao TechNet Community Support
July 12th, 2012 3:23am

Hi Alex, partly :) i know how to change rcp server ports but do not feel netsh dynamicport. but this forum disscusion put me close to issue.Voytas
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July 12th, 2012 6:04pm

Hi, Thanks for your feedback, if you have any further questions or concerns, please feel free to let us know. We can continue to discuss it in forum. Regards, Alex Zhao TechNet Subscriber Support If you are TechNet Subscription user and have any feedback on our support quality, please send your feedback here.Alex Zhao TechNet Community Support
July 15th, 2012 9:53pm

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