Port requirements clarfication

Availability for the Always-On Enterprise

Re: Port requirements clarfication

Veeam Logoby foggy » Thu Apr 12, 2018 1:38 pm

Hi Sebastien, what option to reduce RPC range 2500-5000 do you mean?
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Re: Port requirements clarfication

Veeam Logoby skrause » Thu Apr 12, 2018 1:49 pm

swiniarz wrote:This post is very interesting because one of our customer want to firewall communication between Veaam Server and other component (Proxies, VMs, ...)

As said there's an option in Veeam to reduce RPC range 2500-5000 but is there also an option to reduce RPC range 49152-65535 ?


You can reduce the RPC range, but it is not a Veeam setting. You need to adjust the range used for RPC by Windows through registry changes. You will need to do this on all of your Windows servers to ensure that they can communicate and you want to make sure you leave the range large enough to allow the connections a server needs. Windows uses RPC as the source port for almost all outbound network connections (web, etc) so keep that in mind.

https://support.microsoft.com/en-us/hel ... -firewalls
Steve Krause
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Re: Port requirements clarfication

Veeam Logoby swiniarz » Fri Apr 13, 2018 7:24 am

Hello,

Thanks for answer,

I'm talking about the option you can fin in credential tab -> Ports -> Data Transfer option -> port range when you add an Hyper-V host.
It allows you to customize range 2500 - 5000 but not range range 49152-65535.

Moreover, does this setting apply for all RPC connexion that Veeam B&R will initiate (runtime injection, service deployment, ...) or only for job data transfer ?

Regards
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Re: Port requirements clarfication

Veeam Logoby foggy » Fri Apr 13, 2018 11:32 am

Got it. Then you can limit that range according to Steve's advice. All types of connections that require ports from this range are listed in the corresponding user guide section.
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