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Sasha
Asked: 2011-06-22 23:13:17 +0800 CST

Which ports to open for Hyper-V

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We have two physical servers on the different area protected by firewalls. We want to build Hyper-V cluster for this servers. We found the article from Microsoft VMM Ports and Protocols, but there are a lot of different notes which says that this article is wrong (for example this one). Does anybody exactly know which ports do we need to open?

firewall hyper-v port hyper-v-server-2008-r2

3 Answers

  1. If you must go down this path, have a look here for a third party tool that may get the job done for you:

    http://www.visionsolutions.com/Products/DT-Avail.aspx

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  2. The core of the problem is that I believe the MS Clustering heartbeat is not a TCP/IP protocol packet, rather an ethernet broadcast of a specific kind. This means that cluster nodes need to be in the same subnet, and your firewall will be a firewall-on-a-bridge rather than a firewall-on-a-router. Because of this, a TCP/IP oriented firewall will not know what to do with this kind of packet and will in all likelihood, drop it.

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  3. I really don't think this is possible unless you have considerable (resilient) bandwidth between your sites. It's certainly more complicated than just opening up a few firewall ports. Have a look at this presentation that will give you some idea of the requirements then boggle at the budget required.

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