DHCPv6 and MAC Address inclusion

[James Jalbert]

IP for the Tracer Summit Workstation is 169.244.36.234 



James Jalbert
Network Administrator
Eastern Aroostook RSU #39
Phone: 207-493-4246
E-Mail: jjalbert at rsu39.org








>>> Casey Deccio <casey at deccio.net> 1/24/2012 12:33 PM >>>
On Tue, Jan 24, 2012 at 6:53 AM, perl-list <perl-list at network1.net> wrote:



I for one would love to see your config to see how you are doing this. The hardware ethernet isn't included in the DHCPv6 packet (at least as far as I can see from packet captures) other than as part of the client-id (DUID) on *SOME* clients (ie: NOT d-link). Would love to see your configs... Didn't know the DHCP server decoded the DUID to know what the hardware ethernet is.

 


>From DHCP 4.2.3-P2 release notes [1]:

"Changes since 4.1.0 (new features)
...
- The 'hardware [ethernet|etc] ...;' parameter in host records has been
extended to attempt to match DHCPv6 clients by the last octets of a
DUID-LL or DUID-LLT provided by the client."

This feature was added in DHCP 4.2.0, but RedHat has backported this change to the 4.1.x version distributed with RHEL6.2.

Casey

[1] https://deepthought.isc.org/article/AA-00595
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