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IPv6 Problem, CentOS 6.8
cheridon561
Member
Hello, i have been trying to get my IPv6 working on my server but for some reason it's not working, I am not sure what the problem is, could someone maybe take a look at it & tell me what I am doing wrong or what could be the problem. I am running CentOS 6.8. It also seems that I can receice IPv6 pings but I can't ping anything that's IPv6, my server is hosted at OVH.
IPV6ADDR=1111:2222:33:444D::5/64
IPV6_DEFAULTGW=1111:2222:33:44FF:FF:FF:FF:FF
WARN : [ipv6_add_route] 'No route to host' adding route '::/0' via gateway '1234:1234:12:12FF:FF:FF:FF:FF' through device ''
^Every time i do "service network restart" it comes back with that error
Comments
Your ipv6 gateway is not part of the ipv6 subnet on the interface.
In your example the 4th number must be the same (123X vs 12FF)
And your gateway is most probably 1234:1234:12:123X::1
I followed OVH guide for setting the gateway.
BUMP
Bump
Your gateway is on a different network than your interface.
Based on the interface address, your gateway needs to be on
1111:2222:33:444D::x/64While you are listing1111:2222:33:44FF:FF:FF:FF:FFas you gateway, totally different subnetI'm not sure what I'm doing wrong here, I called OVH & four guys from there phone support could not figure out what the problem was, they said eth0 looks about right
BUMP
Based on that information, the gateway address is not in the same /64 network as your host address. According to that information, your 2607:5300:61:93a::/64 prefix will not contain the gateway's address. The first 64 bits of each are different, they must be the same.
Often times providers make it easy and set it to the ::1 address of the network. Are you sure your gateway is not 2607:5300:61:93a::1?
The f's gateway address seems an unlikely choice, especially since it would literally expand to: 2607:5300:0061:09FF:00FF:00FF:00FF:00FF. Most providers will just use ::1 for convenience. You may need to consult your provider to be sure. If you're masking your real addresses to hide them from being published publicly I understand. However, if you are it would help to know precisely what you're using. I'm happy to take a look if you want to PM them to me.
Would it be ok if i add you on Skype?
Yes, your gateway is outside your subnet, that's how OVH does it. You'll need to add a static route to the gateway ip. I don't know why the insist on doing it that way, but the do...
How do i add a static route?
In /etc/sysconfig/network-scripts folder, create (or edit) the file "route6-eth0" and add this:
Obviously change the gateway IP to the real one...then reboot
@joereid makes a good point. If the gateway is not within your locally configured prefix, you'd need something like this somewhere:
ip -6 route add 2607:5300:61:09FF:FF:FF:FF:FF dev eth0
ip -6 route add default via 2607:5300:61:09FF:FF:FF:FF:FF
If that is the case, presumably the provider's local network has configured a larger prefix for the subnet than what they gave you. This is fine, but you will need to make sure you keep a record of that gateway address.
[root@jaguar network-scripts]# ip -6 route add 2607:5300:61:09FF:FF:FF:FF:FF dev eth0
RTNETLINK answers: File exists
[root@jaguar network-scripts]# ip -6 route add default via 2607:5300:61:09FF:FF:FF:FF:FF
RTNETLINK answers: File exists
[root@jaguar network-scripts]#
[root@jaguar network-scripts]# service network restart
Shutting down interface eth0: [ OK ]
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: Determining if ip address 149.56.24.58 is already i n use for device eth0...
WARN : [ipv6_add_route] 'No route to host' adding route '::/0' via gateway ' 2607:5300:61:09FF:FFFF:FFFF:FFFF:FFFF' through device ''
[ OK ]
[root@jaguar network-scripts]#
Do you have skype?
I still need help with this
BUMP
[ OK ]
The gateway in your output is wrong. OVH gateways end with 4 sets of "00FF", not "FFFF"
i have fixed that miss type & i could still not get it working
BUMP
5 "Bumps" from you so far in this thread, you deserve to be shitcanned for life from this forum, not help.