Discover IPv6 enabled devices on your LAN

pi@raspevaq ~ $ ping6 -c4  -I eth0 ff02::1 | awk '{ print $4 }' | grep fe80 | sed -e 's/:$//' | sort -u

fe80::1af4:6aff:fe9c:ced4
fe80::212:40ff:fe8a:8e38
fe80::ba27:ebff:fef2:b330

pi@raspevaq ~ $