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How to determine DUID for DHCPv6 on F19?

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I'm investigating IPv6, and wondering how, on Fedora 19, the best way to determine the appropriate DUID (DHCP unique identifier) to be used in the host sections, along with fixed-address statements.
If this is documented, please mention.

posted Jun 30, 2013 by anonymous

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1 Answer

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Best answer

Unfortunately there is more than one method that a client may choose to make up their DUID, making it difficult if not impossible to predict what DUID a client will use. However once the client does use a DUID, it should not change.

There is

DUIDLL Based on Link Layer Address
DUIDLLT Based on Link Layer Address plus Time
DUIDEN Based on Enterprise Number

ISC DHCPv6 barfs on PPP links which have no LL address. see https://bugzilla.redhat.com/show_bug.cgi?id=626514#c83
see http://www.ietf.org/rfc/rfc3315.txt Section 9 for documentation.

answer Jun 30, 2013 by anonymous
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