Jessie IPv6 privacy extensions - turn off?

[validom]

I'm running Raspian Jessie on a Pi2. My network provider assigns a /64 ivp6 prefix to my router every day. This prefix-change is published to my internal network immediately. As I like to configure my router (firewall) to allow direct traffic pass-through, I need to have the privacy extensions turned *off*. This has worked with raspian wheezy before.

But raspian jessie currently calculates a new private address with every prefix-change.

cat /proc/sys/net/ipv6/conf/eth0/use_tempaddr returns 0, so the kernel privacy extension seems to be turned off.

Any ideas?

[DougieLawson]

What do you have in /etc/dhcpcd.conf?

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     slaac private

or

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     slaac hwaddr

I changed from the default private to hwaddr to make IPv6 more sane on my network.

[validom]

Thanks a lot! I just commented out

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slaac private

in the configuration, the hw-based address is back now.