Have a unix host and using ipv6? Key things are getting correct global address and default route, similiar to ipv4. Here are some ipv6 instructions.
Is ipv6 faster than ipv4? It depends on many things, your operating system, the network, and the target operating system. If all things are equal, they are close to being the same. Often ipv4 will be NAT or PAT translated on a slow network device, giving ipv4 a delay.
Done on February 2016, I did some ping tests to redhat and facebook, using both protocols. One had ipv4 that was faster, the other had ipv4 was slower. It could be these hosts have different datacenters for ipv4 and ipv6. To check traceroute on ipv6, use "traceroute ipv6address" when on unix.

Ping www.redhat.com root@venture:/home/deluheryr2# ping6 2600:1480:e800::c0 PING 2600:1480:e800::c0(2600:1480:e800::c0) 56 data bytes 64 bytes from 2600:1480:e800::c0: icmp_seq=1 ttl=57 time=7.61 ms 64 bytes from 2600:1480:e800::c0: icmp_seq=2 ttl=57 time=7.40 ms 64 bytes from 2600:1480:e800::c0: icmp_seq=3 ttl=57 time=7.41 ms 64 bytes from 2600:1480:e800::c0: icmp_seq=4 ttl=57 time=7.54 ms i4 bytes from 2600:1480:e800::c0: icmp_seq=5 ttl=57 time=7.42 ms

Same ping to www.redhat.com, but using ipv4 gives me this: root@venture:/home/deluheryr2# ping www.redhat.com PING e3396.dscx.akamaiedge.net (23.66.200.155) 56(84) bytes of data. 64 bytes from a23-66-200-155.deploy.static.akamaitechnologies.com (23.66.200.155): icmp_seq=1 ttl=61 time=1.23 ms 64 bytes from a23-66-200-155.deploy.static.akamaitechnologies.com (23.66.200.155): icmp_seq=2 ttl=61 time=1.20 ms
Conclusion: For www.redhat.com, for some reason ipv6 is slower!
Ping facebook (noticed the face:booc company name is in the ipv6 address, how cute!
root@venture:/home/deluheryr2# ping6 2a03:2880:fffe:c:face:b00c:0:35 PING 2a03:2880:fffe:c:face:b00c:0:35(2a03:2880:fffe:c:face:b00c:0:35) 56 data bytes 64 bytes from 2a03:2880:fffe:c:face:b00c:0:35: icmp_seq=1 ttl=59 time=1.49 ms 64 bytes from 2a03:2880:fffe:c:face:b00c:0:35: icmp_seq=2 ttl=59 time=1.27 ms 64 bytes from 2a03:2880:fffe:c:face:b00c:0:35: icmp_seq=3 ttl=59 time=1.23 ms 64 bytes from 2a03:2880:fffe:c:face:b00c:0:35: icmp_seq=4 ttl=59 time=1.25 ms

Now pinging the same IPV4 address, using same server, no NAT involved, gives me this result: root@venture:/home/deluheryr2# ping6 facebook.com PING facebook.com(edge-star-mini6-shv-01-sjc2.facebook.com) 56 data bytes 64 bytes from edge-star-mini6-shv-01-sjc2.facebook.com: icmp_seq=1 ttl=55 time=73.6 ms 64 bytes from edge-star-mini6-shv-01-sjc2.facebook.com: icmp_seq=2 ttl=55 time=73.6 ms

Conclusion: For www.facebook.com, for some reason ipv6 is faster!

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