Log options for IPv6 clients.

Simon Hobson dhcp1 at thehobsons.co.uk
Mon Apr 7 16:12:49 UTC 2014


Valdinei Rodrigues dos Reis <valmatrix at ig.com.br> wrote:

> I think it is better store the MAC address associated with the leased address.

It can't, for two reasons :

1) The RFCs don't allow it - when DHCPv6 was being designed, there was a policy decision that the MAC address would not be used as an identifier at all.
2) The server doesn't necessarily even know it.

If you check the list archives, you'll find a thread "MAC vs DUID issue" where the reasons are discussed (again). While the context is different, pretty well the same discussion applies to your query.



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