DDNS with host declarations

[Jan Engelhardt]

>I think if you read this thread:
>	http://marc.theaimsgroup.com/?l=dhcp-server&m=114048743622197&w=2
>you'll be set.

That page says "If the client supplies a hostname to dhcpd when it is 
requesting an IP, dhcpd updates the zone file.  very good." And that's 
not happening for me (using ISC DHCPD v3.0.2).

This is the /var/log/messages output when not using a host{} declaration 
at all (in which case the rest of dhcpd.conf will handle dynamic 
allocation and ddns):

DHCPDISCOVER from 00:14:d1:8b:a2:db via br0
DHCPOFFER on 172.16.61.92 to 00:14:d1:8b:a2:db (lp-brhl5040) via br0
Added new forward map from lp-brhl5040.site to 172.16.61.92
added reverse map from 92.61.16.172.in-addr.arpa. to lp-brhl5040.site
DHCPREQUEST for 172.16.61.92 (172.16.60.2) from 00:14:d1:8b:a2:db (lp-brhl5040) 
DHCPACK on 172.16.61.92 to 00:14:d1:8b:a2:db (lp-brhl5040) via br0

However, if given the host{} declaration, this is in messages:

DHCPDISCOVER from 00:14:d1:8b:a2:db via br0
DHCPOFFER on 172.16.60.11 to 00:14:d1:8b:a2:db via br0
DHCPREQUEST for 172.16.60.11 (172.16.60.2) from 00:14:d1:8b:a2:db via br0
DHCPACK on 172.16.60.11 to 00:14:d1:8b:a2:db via br0

And no zone updating is done. The host can only be reached by IP 
address.


>-----Original Message-----
>From: dhcp-users-bounce at isc.org [mailto:dhcp-users-bounce at isc.org] On Behalf
>Of Jan Engelhardt
>Sent: Saturday, October 28, 2006 4:51 PM
>To: dhcp-users at isc.org
>Subject: DDNS with host declarations
>
>Hello,
>
>
>when dhcpd.conf contains a host declaration, such as
>
>  host foobar {
>      fixed-address 192.168.234.2;
>      hardware ethernet 00:aa:bb:cc:dd:ee;
>  }
>
>then no DDNS update takes place at all. How can I achieve that
>
>  (a) DDNS updates are made, according to a fixed hostname (set in 
>  dhcpd.conf)
>
>  (b) DDNS updates are made, according to the preferred hostname 
>  a client sent (in case it sent one)


	-`J'
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