Advanced networking options
After configuring our converged fabric, it's now time to take a look at more advanced networking configuration options in Hyper-V. To take the level of network virtualization even further, it's possible to run virtual machines with the same IP addresses on the same network without causing conflicts.
The techniques used for this are mainly NVGRE for encapsulation and an NVGRE gateway for outside communication. These are great options, but not commonly needed. Stay away from these settings until you really need to use them. Since uncommon options are not the focus of this book, refer to http://bit.ly/Ud5WXq for details.
A far more common option is the use of DHCP Guard. Having a Roque DHCP Server on the network can very quickly become a very ugly problem for nearly every production environment. A Windows DHCP Server in an Active Directory Domain must be authorized until it starts broadcasting DHCP offers. In other topologies, nothing else stops Roque DHCP Servers...
