How to turn off IPv6 router discovery?

My recommendation for servers and workstations that do not need "Stateless Autoconfiguration" is to turn off Router Discovery. You can turn of Router Discovery using netsh. For example, if you want to turn off Router Discovery on Local Area Connection you can type in the following statement from elevated command prompt:

netsh int ipv6 set int "Local Area Connection" routerdiscovery=disabled

To check other interface parameters including Router Discovery type in:

netsh int ipv6 show int "Local Area Connection"

And you'll have to receive something like this: