dhclient -6 handling of IPv6 Duplicate Address Detection
plahti at qnx.com
Mon Apr 26 22:09:03 UTC 2010
When assigning an IPv6 address a node performs Duplicate Address
Detection (DAD, RFC 4862). And as expected this is triggered by the OS
stack when dhclient -6 configures an address via the dhclient-script.
However, if the address is found to be duplicate, i.e. when DAD fails, I
don't see a Decline and an attempt to retry (RFC 3315, section 18.1.8).
It seems the dhclient goes on unaware of what occurred...
Is this a known problem? With known solutions? Should dhclient handle
this, or is the intent that an outside entity (e.g. the dhclient-script)
do it? (is it ok to sleep in the script while DAD is performed or will
that mess up some dhclient timing)
Regards and Thanks in advance,
PS. I saw
but couldn't find a response...
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