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The Windows Hyper-V technology does not fully support the OVF industry standard. Microsoft documents a complex and somewhat limited procedure on their page about converting OVF files to Hyper-V. There are third-party conversion tools available that simplify this deployment scenario, for example StarWind's free V2V Converter which worked well in our tests.
Debian - Customizing Network Settings
The Debian team has an excellent wiki page dedicated to customizing the network configuration; this page is available in several languages:
https://wiki.debian.org/NetworkConfiguration
CentOS - Start up the VM and set a custom IP Address, DNS... (optional)
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