[CentOS] Ifconfig ipv6:permission denied.

Hi!

I installed CentOS 7 today, it's a minimal install, so it didn't have 
ifconfig command. So I installed net-tools, however I can't add ipv6 
address to it.

# ifconfig enp0s3 add fc00::1002/124
SIOCSIFADDR: Permission denied.

Yes, I'm running as root.

CentOS is running in a Qemu instance with e1000 ethernet card.