Tag Archives: arp guard

Securing Hyper-V 2012R2 hosts and VMs

Microsoft has implemented a lot of new cool security features in Hyper-V on the 2012R2 release, and most importently statefull firewall and network inspection features. From the 2012 release, Microsoft introduced features like* ARP Guard https://msandbu.wordpress.com/2013/04/03/arp-guard-in-hyper-v-2012/* DHCP Guard * Router Guard(These three functions are also included in regular network devices from most vendors) The use… Read More »

ARP guard in Hyper-V 2012

So I decided to try the ARP guard functionality in Hyper-V 2012 and see how it works, and in the same case check if it is possible to change the Mac address. I took a look at what documentation Microsoft had around the subject http://blogs.technet.com/b/wincat/archive/2012/11/18/arp-spoofing-prevention-in-windows-server-2012-hyper-v.aspx http://technet.microsoft.com/en-us/library/hh831823.aspx And what they say here is that  I am… Read More »