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Hello,
I have a Hyper-V host server with 2 physical NICs running Windows Server 2016 with one virtual machine on board. My virtual machine is a Kerio Control OS and I have 2 virtual external switches enabled in Hyper-V. The first switch is used as Kerio external Interface and second one for Kerio trusted interface and connectivity of a physical host with an internal network. All interfaces on both physical and virtual machines are configured with static IPs. The problem is that some times vNIC on a host machine is loosing it's gateway setting with no reason (it becomes empty). When manually adding a gateway back is starts working again.
Could you please kindly advise on what can be the reason behind.
Thank you!
The virtual machine shouldn't have any impact on this. I'd just check there weren't gateways on both host network adapters as windows would not like this condition.
--please don't forget to Accept as answer if the reply is helpful--
Internal interface on Kerio virtual machine is a gateway for all the rest network devices. As long as host machine also needs access to the Internet I had applied a static gateway IP to it's vNIC adapter. Otherwise network status is connected without Internet. When the gateway setting is being dropped I'm loosing remote connectivity with the server.
Hi,
Do you mean after using the physical NIC to create the virtual switch, the gateway on the physical NIC is lost?
When you create a virtual switch on a physical network card on Hyper-V, ALL protocols are removed from that NIC and replaced with Microsoft's extensible switch protocol. The behavior is expected and normal. We don't need to add back the gateway on the physical NIC.
Thanks for your time!
Best Regards,
Anne
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Hi,
I would like to check if the reply could be of help? If yes, please help accept answer, so that others meet a similar issue can find useful information quickly. If you have any other concerns or questions, please feel free to feedback.
Best Regards,
Anne
You mentioned a problem on host operating system. The host vNic setting should not have anything to do with guest. May need to draw a picture of setup and describe problems in greater detail.