Static IPv6 leases and DDNS updates

[David Gutierrez Rueda]

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

_______________________________________________
dhcp-users mailing list
[hidden email]
https://lists.isc.org/mailman/listinfo/dhcp-users

[Bill Shirley]

I have this happening on my system too and filed a bug report. Here is the response:

On Thu Oct 29 09:04:31 2015, [hidden email] wrote:

Bug Report from www.isc.org:

* Name: Bill Shirley

* Email: [hidden email]

* Software Version: dhcp-server-4.3.2-2.fc22.x86_64

* OS: Linux (Fedora 22)

* Subject:man page dhcpd.conf update-static-leases

Bug Detail

The man pages for dhcpd.conf states that for update-static-leases:
This can only work with the interim
DNS update scheme

Does it not also work for the ddns-update-style standard scheme?

It should work for both schemes.  I've tried it and it worked fine in my tests
if it doesn't for you please update this ticket.

———————-
Also update-static-leases does not work for either scheme when using
IPv6
fixed-address6:
host bigbird { host-identifier option dhcp6.client-id
00:01:00:01:1d:73:5b:05:00:25:22:36:97:f9; fixed-address6
2001:470:e1b8:4::102;
}

We haven't added support for DDNS with v6 static leases yet.
I'll put it on our list of requests.

Thanks

---

Thank you for your bug reports,
Shawn

Bill


_______________________________________________
dhcp-users mailing list
[hidden email]
https://lists.isc.org/mailman/listinfo/dhcp-users

[David Gutierrez Rueda]

Hi Bill,

 

Thank you. I’m trying to find out if this feature is already in ISC’s short term roadmap. I’ll post this information.

 

Cheers,

David

 

From: [hidden email] [mailto:[hidden email]] On Behalf Of Bill Shirley
Sent: 10 January 2016 00:49
To: [hidden email]
Subject: Re: Static IPv6 leases and DDNS updates

 

I have this happening on my system too and filed a bug report. Here is the response:

On Thu Oct 29 09:04:31 2015, [hidden email] wrote:

Bug Report from www.isc.org:

* Name: Bill Shirley

* Email: [hidden email]

* Software Version: dhcp-server-4.3.2-2.fc22.x86_64

* OS: Linux (Fedora 22)

* Subject:man page dhcpd.conf update-static-leases

Bug Detail

The man pages for dhcpd.conf states that for update-static-leases:

This can only work with the interim

DNS update scheme

Does it not also work for the ddns-update-style standard scheme?

It should work for both schemes.  I've tried it and it worked fine in my tests

if it doesn't for you please update this ticket.

———————-

Also update-static-leases does not work for either scheme when using

IPv6

fixed-address6:

host bigbird { host-identifier option dhcp6.client-id

00:01:00:01:1d:73:5b:05:00:25:22:36:97:f9; fixed-address6

2001:470:e1b8:4::102;

}

We haven't added support for DDNS with v6 static leases yet.

I'll put it on our list of requests.

Thanks

---

Thank you for your bug reports,

Shawn

Bill

_______________________________________________
dhcp-users mailing list
[hidden email]
https://lists.isc.org/mailman/listinfo/dhcp-users