On Fri, 22 Apr 2016, Jeroen Massar wrote:
Isn't it awesome that Ubuntu wants dynamic addresses on servers? :)
Well, this wasn't a server, this is installed as a desktop.
They have been told about that problem by many people already, unfortunately, they claim to know better...
Who are "they"?
But, check your 'sysctl -a | net.ipv6.conf' you might find some knobs there. Next to that, check systemd settings as that thing wants to take over the kernel and thus ignores those settings and comes up with it's own...
It's strangem it looks like they still have the kernel to process RAs? Doesn't it seem like the kernel now has support for the kind of stable non-EUI64 based addresses from https://tools.ietf.org/html/rfc7217 ?
http://unix.stackexchange.com/questions/251401/cannot-read-key-net-ipv6-conf-all-stable-secret-in-sysctl seems to indicate that the error message below is because the secret isn't set? So potentially if I set the secret I'll get the same address every time? Let's try...
$ sudo sysctl -a | grep net.ipv6.conf | grep -i eth0 sysctl: reading key "net.ipv6.conf.all.stable_secret" sysctl: reading key "net.ipv6.conf.default.stable_secret" sysctl: reading key "net.ipv6.conf.eth0.stable_secret" net.ipv6.conf.eth0.accept_dad = 1 net.ipv6.conf.eth0.accept_ra = 1 net.ipv6.conf.eth0.accept_ra_defrtr = 0 net.ipv6.conf.eth0.accept_ra_from_local = 0 net.ipv6.conf.eth0.accept_ra_min_hop_limit = 1 net.ipv6.conf.eth0.accept_ra_mtu = 1 net.ipv6.conf.eth0.accept_ra_pinfo = 0 net.ipv6.conf.eth0.accept_ra_rt_info_max_plen = 0 net.ipv6.conf.eth0.accept_ra_rtr_pref = 0 net.ipv6.conf.eth0.accept_redirects = 1 net.ipv6.conf.eth0.accept_source_route = 0 net.ipv6.conf.eth0.autoconf = 1 net.ipv6.conf.eth0.dad_transmits = 1 net.ipv6.conf.eth0.disable_ipv6 = 0 net.ipv6.conf.eth0.force_mld_version = 0 net.ipv6.conf.eth0.force_tllao = 0 net.ipv6.conf.eth0.forwarding = 0 net.ipv6.conf.eth0.hop_limit = 64 net.ipv6.conf.eth0.ignore_routes_with_linkdown = 0 net.ipv6.conf.eth0.max_addresses = 16 net.ipv6.conf.eth0.max_desync_factor = 600 net.ipv6.conf.eth0.mc_forwarding = 0 net.ipv6.conf.eth0.mldv1_unsolicited_report_interval = 10000 sysctl: reading key "net.ipv6.conf.lo.stable_secret" sysctl: reading key "net.ipv6.conf.wlan0.stable_secret" net.ipv6.conf.eth0.mldv2_unsolicited_report_interval = 1000 net.ipv6.conf.eth0.mtu = 1500 net.ipv6.conf.eth0.ndisc_notify = 0 net.ipv6.conf.eth0.proxy_ndp = 0 net.ipv6.conf.eth0.regen_max_retry = 3 net.ipv6.conf.eth0.router_probe_interval = 60 net.ipv6.conf.eth0.router_solicitation_delay = 1 net.ipv6.conf.eth0.router_solicitation_interval = 4 net.ipv6.conf.eth0.router_solicitations = 3 net.ipv6.conf.eth0.suppress_frag_ndisc = 1 net.ipv6.conf.eth0.temp_prefered_lft = 86400 net.ipv6.conf.eth0.temp_valid_lft = 604800 net.ipv6.conf.eth0.use_oif_addrs_only = 0 net.ipv6.conf.eth0.use_tempaddr = 2 -- Mikael Abrahamsson email: swm...@swm.pp.se
