[dhcwg] Option 119 (Domain Search Option) and Option 15 (Domain Name Option)

VithalPrasad Gaitonde <gvithal@gmail.com> Tue, 30 November 2010 07:06 UTC

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Date: Tue, 30 Nov 2010 12:37:38 +0530
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From: VithalPrasad Gaitonde <gvithal@gmail.com>
To: dhcwg@ietf.org
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Subject: [dhcwg] Option 119 (Domain Search Option) and Option 15 (Domain Name Option)
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Hi,

Option 119 (RFC 3397) and Option 15 (RFC 2132) provide DNS domain suffixes
to a DHCP client - with option 119 providing the ability to configure a list
instead of a single domain name (option 15).

Is there any specification on the client behaviour when both option 15 and
option 119 are provided in the server response:
1. Should option 119 value override option 15  value
2. Should option 15 value override option 119 value
3. Should the set of values be concatenated with preference for option 119
i.e. name resolution is first attempted with the values in option 119
followed by value in option 15.
4. Should the set of values be concatenated with preference for option 15
i.e. name resolution is first attempted with the value in option 15 followed
by values in option 119.
RFC 3396 seems to be silent on this aspect.

Thanks,
Prasad