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.