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Configure IPv6 - CentOS OVH - Can't ping

I can't ping my IPv6 from outside and inside of the server, i can't ping any IPv6. My IPv6 : 2001:41d0:2:XXXX::/64



I use CentOS 6.6 with a Xen Kernel that supports IPv6. My provider is OVH and i followed several guides : http://guide.ovh.com/Ipv4Ipv6 and http://www.cyberciti.biz/faq/rhel-re...configuration/ and here my config :



cat /etc/sysconfig/network



...

NETWORKING_IPV6=yes


cat /etc/sysconfig/network-scripts/ifcfg-eth0



DEVICE=eth0
BOOTPROTO=static
...
IPV6INIT=yes
IPV6_AUTOCONF=no

IPV6ADDR="2001:41D0:2:xxxx::/64"
IPV6_DEFAULTGW="2001:41d0:2:xxff:ff:ff:ff:ff"


cat /etc/sysconfig/network-scripts/route6-eth0



...
net.ipv6.conf.all.autoconf = 0 
net.ipv6.conf.default.autoconf = 0 
net.ipv6.conf.eth0.autoconf = 0

net.ipv6.conf.all.accept_ra = 0 
net.ipv6.conf.default.accept_ra = 0 
net.ipv6.conf.eth0.accept_ra = 0
net.ipv6.conf.all.accept_redirects=0 
net.ipv6.conf.all.router_solicitations=1
net.ipv6.conf.default.proxy_ndp=1
net.ipv6.conf.all.proxy_ndp=1 
net.ipv6.conf.default.forwarding=1
net.ipv6.conf.all.forwarding = 1



Network restart : service network restart



i add a route : route -A inet6 add default gw 2001:41d0:2:xxff:ff:ff:ff:ff dev eth0



Ip6tables is disabled.



ifconfig -a



eth0      ...

          inet6 addr: 2001:41d0:2:xxxx::/64 Scope:Global
          inet6 addr: fe80::230:48ff:fefd:7a86/64 Scope:Link


traceroute ipv6.google.com



traceroute to ipv6.google.com (2a00:1450:4007:80d::200e), 30 hops max, 80 byte packetsping ipv6.
 1  2001:41d0:2:xxxx::)  3005.167 ms !H  3005.118 ms !H  3005.089 ms !H



ping ipv6.google.com



ping: unknown host ipv6.google.com


Ping from an IPv6 failed too.





I change IPv6 like that : 2001:41d0:2:XXXX::1234/64




I have one file for IPv6 routes :



cat /etc/sysconfig/network-scripts/route6-eth0



2001:41D0:2:xxff:ff:ff:ff:ff dev eth0
default via 2001:41D0:2:xxff:ff:ff:ff:ff


I restarted the network service and i get this warning message :




service network restart



Shutting down interface eth0:                              [  OK  ]
Shutting down loopback interface:                          [  OK  ]
Bringing up loopback interface:                            [  OK  ]


Global IPv6 forwarding is disabled in configuration, but not currently disabled
in kernel




Please restart network with '/sbin/service network restart'



WARN : [ipv6_add_route] 'No route to host' adding route '::/0' via gateway ' 2001:41d0:2:xxff:ff:ff:ff:ff' through device ''
[ OK ]



ping6 2001:41d0:2:xxff:ff:ff:ff:ff



PING 2001:41d0:2:xxff:ff:ff:ff:ff(2001:41d0:2:xxff:ff:ff:ff:ff) 56 data bytes



From 2001:41d0:2:xxxx::1234 icmp_seq=1 Destination unreachable: Address unreachable

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