Home > Microsoft, Virtualization, Windows 2012 > Windows 2012 Hyper-V Advanced Network Security : DHCP Guard, Router Guard, Port Mirroring

Windows 2012 Hyper-V Advanced Network Security : DHCP Guard, Router Guard, Port Mirroring

Windows 2012 Hyper-V brought a lot of new features. There are many improvements in security as well:

DHCP Guard is a security feature that drops DHCP server messages from unauthorized virtual machines pretending to be DHCP servers.
Router Guard is a security feature that drops Router Advertisement and Redirection messages from unauthorized virtual machines pretending to be routers.
Port Mirroring duplicates all egress and ingress traffic to/from one or more switch ports (being monitored) to another switch port (performing monitoring)

These settings are configured per Virtual Machine and Virtual Switch. To configure :

  1. Open the Hyper-V Manager and then select the Virtual Machine (e.g. W2012-FS01)
  2. On the right panel, click on Settings.
  3. Select the Virtual Switch (e.g. v-External-Wired) you want to configure and expand Advanced Features.

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