On 12/14/2016 08:25 AM, Holger Zuleger wrote: >>> Has anyone more information about this? Especially how to configure it? >> >> The only trick I found out was: >> >> https://twitter.com/tweetsix/status/778615624444571649 >> 8<------- >> Also who has typed: "sudo sysctl -w net.inet6.ip6.maxifprefixes=1" (or >> stored the setting in /etc/sysctl.conf) recently? ;) >> --------->8 > To be honest, that's definitively is not the way I like to go. > >> As then you only get the DHCPd address (requires DHCPv6 server....) on >> your interface and not all the other magic ones that change all the time >> and are extremely useless if you want to ADDRESS a host... >> (yes, I love VNC'ing, SSH'ing and doing SSH-backups of my boxes...) > Oh no, DHCPv6 is not needed here. > > The problem is *not* that this IID is changing. It is a stable one. And > yes, I vote not against temporary addresses. > >> There are claimed 'good' properties of a changing address but mostly >> they are useless: "it works against tracking" which is useless if your >> /48 is static and there are only ~10 hosts in that prefix that call >> outbound. Also, something with HTTP Cookies for 99% of the other things. >> And I am really not lugging my 27" iMac around to get it in another >> network.... >> >> Hence, a switch to turn if off.... would be amazing. >> The above trick kinda does that though and it mostly seem to work. > My info is, to set > sysctl -w net.inet6.send.opstate=0 > to go back to mac address based eui64, but didn't checked it.
Please don't resort to eui64. That's a bad idea. See RFC7721 and RFC707 Thanks, -- Fernando Gont e-mail: [email protected] || [email protected] PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1
