Hyperv Replication Firewall ports

Question

Hey Guys

I have a very basic question.
What are the ports that we usually open for Hyper-V replication.
As per the MS DOC or the Hyperv Console. Opening either port 80 or 443 would suffice.
https://learn.microsoft.com/en-us/windows-server/virtualization/hyper-v/manage/set-up-hyper-v-replica

However, when I try to do a netstat -ano | finstr "ip" . I see the local ports as 80 or 443 (based on the replication setup i used) . But in remote ports i see the traffic on random ports. Is it normal?

For achieving the replication between my 2 Hyper-v's i have to enable everything in the firewall to achieve this. (I am thinking this as a huge security risk). Any help would be highly appreciated.

Thank you!!

PS : I have done some proper research about the ports that I have to open for replication and saw only 80 and 443. (May be my research was on one Focus point ) .

if you could help me with some blogs or suggestions. That will be of great help.

Answer 1

Something here may help.
https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/service-overview-and-network-port-requirements

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Answer 2

Hi,

Easy way to enable Hyper V replication related firewall rules:

Both on source host and replica host, please open the firewall and click inbound and outbound rules, then click "Filter by group", click "Filter by Hyper V replica HTTP" & "filter by Hyper V replica HTTPS", then enable the rules in the filter.

Thanks for your time!
Best Regards,
Anne

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