dhcpinform request from Vista gets wrong Name servers

Randall C Grimshaw rgrimsha at syr.edu
Thu Aug 16 15:17:29 UTC 2007

I am familiar with views, but our production DNS servers are a newer
vintage that do not support wildcards. Can you share your patch?

-----Original Message-----
From: dhcp-users-bounce at isc.org [mailto:dhcp-users-bounce at isc.org] On
Behalf Of Jeffrey Collyer
Sent: Thursday, August 16, 2007 9:22 AM
To: DHCP Users Mailing List
Subject: Re: dhcpinform request from Vista gets wrong Name servers

Had the same problem here with the captive portal/registration network.

My fix was to use Bind 9's views, and define one view for registration 
networks and the other normal view for all other queries on our central 
DNS servers.   That way even if the machines get the "wrong" dns servers

on the dhcpinform, they get the "right" captive addresses returned.

Adding views did make the DNS server a bit slow to do a full restart, 
but other than that the DNS machines load hasn't changed much.

Jeffrey Collyer
Hostmaster/CMS Admin
University of Virginia

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