Re: Generating IPv6 EUI64 based addresses

[Robert Elz <kre%munnari.OZ.AU@localhost>]

    Date:        Sun, 08 May 2016 16:17:01 +0100
    From:        Roy Marples <roy%marples.name@localhost>
    Message-ID:  <3081687.BYelA2oTGs%uberpc.marples.name@localhost>

  | As such it's extremely likely it was given to you by a DHCPv6 server.

That seems to be it, thanks.

  | So basically your IPv6 router is saying there is a DHCPv6 network address
  | to negotiate as well.

Yes, ....  (no idea why, but there are a bunch of IPv6 related experiments
take place on that net, so anything is possible...)

(this has been re-wrapped for e-mail convenience from what tcpdump
actually produced)

02:04:17.935763 IP6 (class 0xe0, hlim 255, next-header ICMPv6 (58)
    payload length: 64) fe80::1 > ff02::1: [icmp6 sum ok]
    ICMP6, router advertisement, length 64 hop limit 64,
    Flags [managed, other stateful], pref medium, router lifetime 1800s,
    reachable time 0s, retrans time 0s
          source link-address option (1), length 8 (1): 00:24:c4:6a:13:ff
          mtu option (5), length 8 (1):  1500
          prefix info option (3), length 32 (4): 2001:3c8:9009:181::/64,
              Flags [onlink, auto], valid time 2592000s, pref. time 604800s


  | You can instruct dhcpcd it ignore this by using the nodhcp6 option.

Thanks, will do that, and you can expect to hear no more from me about this.

kre