[Kea-users] kea-dhcpv6 handing out prefix instead of IP address

Joelson Tadeu Vendramin jtvendramin at yahoo.com.br
Thu Mar 18 16:05:38 UTC 2021


Hi John,

I think that when you're specifying the pool as a network ({ "pool": 
"aaaa:bbbb:cccc:dddd::/80" }), kea is assuming that the very first IPv6 
is a "valid" one.

Try specifying the pool as a range of IPv6, or, at least configure an 
exception (not to serve) the address ...::0 of /80.

Regards,

Joelson

Em 18/03/2021 10:25, IT TroubleMan escreveu:
> Hello,
>
> running kea-dhpcv6 version 1.9.5.
>
> Excerpt from my config:
>
> "subnet6": [ { "subnet": "aaaa:bbbb:cccc:dddd::/64", "pools": [ { 
> "pool": "aaaa:bbbb:cccc:dddd::/80" }  }]
>
> Problem is that a client (Windows 7) gets aaaa:bbbb:cccc:dddd:: as its 
> IP address.
> I activated debuglog with 99 verbosity and found no warning or error, 
> it just hands out aaaa:bbbb:cccc:dddd::
> Client gets DNS servers successfully.
>
> Network uses DHCP relay. M and O flags are set.
> In other networks/VLANs with same configuration but different DHCPv6 
> server it works without any problem.
>
> Thanks for your advices.
>
> John
>
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