ddns update probs

Simon Hobson shobson0309 at colony.com
Fri Jan 7 10:57:11 UTC 2005

saravanan ganapathy wrote:

>I am using dhcp & dyn.dns(bind) in my network and
>everything works fine, except the following issue.
>some of my mobile systems roaming around the networks
>and due to some reasons,those are not properly send
>the release request when changing the network. Ex. a
>notebook has ip address of and changed
>to But my dns still shows
> only. my dhcp log shows as follows
>Jan  7 09:52:21 dhcp dhcpd: if IN A note1.abc.com
>domain doesn't exist add 302400 IN A note1.abc.com
> add 302400 IN TXT note1.abc.com
>"31f0ea946091a19ad6167e1fb29ca6272d": domain already
>Jan  7 09:52:21 dhcp dhcpd: if IN TXT note1.abc.com
>"31f0ea946091a19ad6167e1fb29ca6272d" rrset exists
>delete IN A note1.abc.com add 302400 IN A
>note1.abc.com no such RRset.
>I know that this is due to the existence of rr sets of
>note1.abc.com as
>Is there any possibility to overwrite the existing
>rrsets? or any other solution for this?

This very problem has just been discussed (in the last week) over on 
the ISC DHCP server list - I suggest you check the archives at 



NOTE: This is a throw-away email address which will reach me for as 
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Simon Hobson MA MIEE, Technology Specialist
Colony Gift Corporation Limited
Lindal in Furness, Ulverston, Cumbria, LA12 0LD
Tel 01229 461100, Fax 01229 461101

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