This is what did for me
Quote:
[root@host357690 ~]# ifconfig
eth1 Link encap:Ethernet HWaddr 00:30:48 9 A:B9
inet addr:174.36.75.42 Bcast:174.36.75.63 Mask:255.255.255.224
inet6 addr: 2607:f0d0:1003:66:230:48ff:fed9:dab9/64 Scope:Global
inet6 addr: 2607:f0d0:1003:34:230:48ff:fed9:dab9/64 Scope:Global
inet6 addr: 2607:f0d0:1003:20:230:48ff:fed9:dab9/64 Scope:Global
inet6 addr: fe80::230:48ff:fed9:dab9/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:389025697 errors:0 dropped:485 overruns:0 frame:0
TX packets:312536533 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:375954534354 (350.1 GiB) TX bytes:363922430227 (338.9 GiB)
Memory:e8100000-e8120000
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[root@host357690 ~]# ping6 2607:f0d0:1003:66:230:48ff:fed9:dab9
PING 2607:f0d0:1003:66:230:48ff:fed9:dab9(2607:f0d0:1003:66:230:48ff:fed9:dab9) 56 data bytes
64 bytes from 2607:f0d0:1003:66:230:48ff:fed9:dab9: icmp_seq=0 ttl=64 time=0.021 ms
64 bytes from 2607:f0d0:1003:66:230:48ff:fed9:dab9: icmp_seq=1 ttl=64 time=0.029 ms
64 bytes from 2607:f0d0:1003:66:230:48ff:fed9:dab9: icmp_seq=2 ttl=64 time=0.027 ms
64 bytes from 2607:f0d0:1003:66:230:48ff:fed9:dab9: icmp_seq=3 ttl=64 time=0.028 ms
64 bytes from 2607:f0d0:1003:66:230:48ff:fed9:dab9: icmp_seq=4 ttl=64 time=0.028 ms
--- 2607:f0d0:1003:66:230:48ff:fed9:dab9 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 3999ms
rtt min/avg/max/mdev = 0.021/0.026/0.029/0.006 ms, pipe 2
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But now, how can i use 2607:f0d0:1003:0066:0000:0000:0000:2? 
[root@host357690 ~]# ping6 2607:f0d0:1003:0066:0000:0000:0000:2
PING 2607:f0d0:1003:0066:0000:0000:0000:2(2607:f0d0:1003:66::2) 56 data bytes
From 2607:f0d0:1003:66:230:48ff:fed9:dab9 icmp_seq=0 Destination unreachable: Address unreachable