cannot renew IPV6 address

[Philippe Clérié]

On 01/26/2017 11:54 AM, Jean-Max Reymond wrote:
> Le 26/01/2017 à 17:42, Simon Hobson a écrit :
>> Brice Abba <briceabba at gmail.com> wrote:
>>
>>> Hi Jean,
>>>
>>>     • Ensure the server is running with "ps cmd"
>>>     • play with this value to test " Max lifetime 43200"
>>>     • Ensure the router on the link advertise "management config flag"
>>
>> I read it as the server is the ISP's, so he has no access to check
>> things like that.
>> Besides, if he is getting an address initially (and I assume, after a
>> reboot), then the server must be running.
>
> yes, that's correct. My ISP gives me an IPV6 adress at boot and reboot
>
> dhclient write a file /var/db/dhclient6.leases
>
> # cat /var/db/dhclient6.leases
> default-duid "\000\001\000\001 \033\313$T\2375\007\255\030";
> lease6 {
>   interface "eno1";
>   ia-pd 35:07:ad:18 {
>     starts 1485445025;
>     renew 43200;
>     rebind 172800;
>     iaprefix 2001:bc8:344f:200::/56 {
>       starts 1485445025;
>       preferred-life 7200;
>       max-life 43200;
>     }
>   }
>   option dhcp6.client-id 0:3:0:1:73:41:e0:29:71:a3;
>   option dhcp6.server-id 0:1:0:1:1b:ac:bc:2d:10:60:4b:9b:a:f4;
>   option dhcp6.name-servers 2001:bc8:401::3,2001:bc8:1::16;
>   option dhcp6.domain-search "online.net.";
> }
> lease6 {
>   interface "eno1";
>   ia-pd 35:07:ad:18 {
>     starts 1485445038;
>     renew 43200;
>     rebind 172800;
>     iaprefix 2001:bc8:344f:200::/56 {
>       starts 1485445038;
>       preferred-life 7200;
>       max-life 43200;
>     }
>   }
>   option dhcp6.client-id 0:3:0:1:73:41:e0:29:71:a3;
>   option dhcp6.server-id 0:1:0:1:1b:ac:bc:2d:10:60:4b:9b:a:f4;
>   option dhcp6.name-servers 2001:bc8:401::3,2001:bc8:1::16;
>   option dhcp6.domain-search "online.net.";
> }
>
>

Is it possible that you're getting an entire /56 block and not just a 
single address? In which case you can pretty much assign yourself any 
address you wish on that interface as long as you're within that block.

I do know that Comcast does assign at least a /64. I've also heard /60. 
But 64 is what I have seen.

-- 
Philippe

------
The trouble with common sense it that it is so uncommon.
<Anonymous>