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Re: how to prefer temporary address? (raspbian / stretch)



Le 17/08/2019 à 11:26, Andrea Borgia a écrit :

At the moment my raspy (stretch-based Raspbian) is getting a /128 static lease from my router out of the /48 I get from the he.net tunnel. It also has a /64 address which seems stable across reboots but is not a slaac address.

It would be clearer if you posted the output of

 ip -6 addr

If you have privacy concerns feel free to mangle the /48 prefix assigned by the tunnel broker.

Where does this /64 address come from? In the logs I see it mentioned by avahi-daemon and dhcpd but I cannot find a corresponding lease file.

dhcpd (ISC DHCP server) or dhcpcd (DHCP client daemon) ?

More important, how do I get the sytem to generate and prefer a temporary address for outgoing connections?

 sysctl net.ipv6.conf.${INTERFACE}.use_tempaddr=2

How to set it at the system configuration level depends on the network configuration framework used. With ifupdown, add the following option to the iface stanza in /etc/network/interfaces :

 privext 2


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