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Before updating the DNS, DHCP checks that there is no existing
record for that<br>
hostname or, if there there is a record, that its TXT (or DHCID)
matches the value<br>
it calculates for the MAC address. If it finds a record and there
is a mis-match,<br>
it issues the 'not mine' message when actually is DHCP's but not for
that MAC<br>
address.<br>
<br>
Add a host record for one of the two MACs setting the ddns-hostname
to use:<br>
<font color="#993300"><tt>host Bobs-Wifi { hardware ethernet
f0:bf:97:13:7f:f8; ddns-hostname = "Bobs-Wifi"; }</tt><tt><br>
</tt></font><br>
This should stop the conflict.<br>
<br>
Bill<br>
<br>
<div class="moz-cite-prefix">On 9/5/2017 2:45 AM,
<a class="moz-txt-link-abbreviated" href="mailto:thomas.zenz@oenb.at">thomas.zenz@oenb.at</a> wrote:<br>
</div>
<blockquote type="cite"
cite="mid:1504593956275-0.post@n4.nabble.com">
<pre wrap="">Hi Bill,
Yes the mac is different:
Sep 4 10:29:52 anlpn35 dhcpd: DHCPREQUEST for 172.20.17.22 from
f8:0b:cb:4f:db:dc (PC7345) via 212.39.196.110
Sep 4 10:29:52 anlpn35 dhcpd: DHCPACK on 172.20.17.22 to f8:0b:cb:4f:db:dc
(PC7345) via 212.39.196.110
Sep 4 10:50:41 anlpn35 dhcpd: DHCPREQUEST for 10.101.90.45 from
d4:81:d7:77:15:16 via enp6s0
Sep 4 10:50:41 anlpn35 dhcpd: DHCPACK on 10.101.90.45 to d4:81:d7:77:15:16
via enp6s0
The difference is, the 172.20 Address is for a Cisco AnyConnect Client.
Actually Requested by the Firewall with a different UID for each Session.
MAC for all sessions is the same.
Nevertheless anlpn35 added the A Record for 172.20.17.22 why does it say
DHCID not mine??
Tom
--
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</pre>
</blockquote>
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