admin@omnios-vps:$ uname -a
SunOS omnios-vps 5.11 omnios-r151054-180b86b9dd i86pc i386 i86pc

admin@omnios-vps:$ ipadm
ADDROBJ TYPE STATE ADDR
lo0/v4 static ok 127.0.0.1/8
vioif0/v4 dhcp ok 207.180.xxx.xxx/18
lo0/v6 static ok ::1/128
vioif0/v6 addrconf ok fe80::250:xxxx:xxxx:xxxx%vioif0/10
vioif0/v6b static ok 2a02:c207:xxxx:xxxx::20/64
vioif0/v6c static ok 2a02:c207:xxxx:xxxx::30/64
vioif0/v6a static ok 2a02:c207:xxxx:xxxx::10/64

Pinging from my #FreeBSD desktop machine:
$ ping -o 2a02:c207:xxxx:xxxx::30
PING(56=40+8+8 bytes) 2a02:842b:xxxx:xxxx:xxxx:2bca:78b1:c56a --> 2a02:c207:xxxx:xxxx::30
16 bytes from 2a02:c207:xxxx:xxxx::30, icmp_seq=0 hlim=243 time=14.001 ms

--- 2a02:c207:xxxx:xxxx::30 ping statistics ---
1 packets transmitted, 1 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 14.001/14.001/14.001/0.000 ms

It works for all IPv6 !