Static IPv6 leases and DDNS updates

David Gutierrez Rueda David.Gutierrez at
Fri Jan 8 14:01:49 UTC 2016

Hello all,

I'm trying to configure DNS updates for static leases on IPv6 without success. Dynamic ipv6 leases are updating the DNS so after adding the next configuration I would have expected statics to work:

update-static-leases on;
update-conflict-detection off;
update-optimization off;

After fighting with some options I've tried to check the dhcpv6.c code, inside function reply_process_ia_na:

2141:     if (reply->static_lease) {
2161:                     goto cleanup;
2162:     }

This 'goto cleanup' seems to jump over the ddns_updates process for dynamic leases.

Are this kind of updates supported? Is there any other configuration that might trigger the update?

Thank you in advance.
David Gutierrez
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