Broken IPv6 dhcp clients

Sten Carlsen stenc at
Fri Jul 6 09:45:23 UTC 2012

On 06/07/12 8:55, Simon Hobson wrote:
> Eustace, Glen wrote:
>> It has been suggested that they are expecting an option in the
>> response that I am not supplying, which could well be the case.
> Does Windows have an IPv6 DHCP server ? If so, then I'd be tempted to
> fire one of those up and see what options it provides. I've lost count
> of the times I've come across stuff where the vendors idea of "any OS"
> == "several modern versions of Windows" and "DHCP server" == "Windows
> DHCP Server".
> Other than that, have you tried asking the vendor(s) ?
You could also fire up wireshark and look at the actual messages and
check what are asking for. Hopefully the are asking for what they need
if it is not standard.

If you fire up a windows dhcp server, you could look for what is in
those messages and see the difference to the ISC servers messages. This
may give valuable clues.

Best regards

Sten Carlsen

No improvements come from shouting:

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