IPv6 /64 provided by DHCP6 over PPPoE



  • Hello,

    My ISP provide me an /64 IPv6 prefix trough DHCP6 PPPoE.

    Interface WAN :

    IPv6 Address : 2a02:xxxx:0:xxxx:290:bff:fe4c:bdc1
    IPv6 Link Local : fe80::290:bff:fe4c:bdc1%pppoe0
    Subnet mask IPv6 : 64
    Gateway IPv6 : fe80::230:88ff:fe04:851a

    But is it possible with Track Interface to use part of my IPv6 /64 prefix on the LAN interface?

    In my LAN interface configuration, when I define an IPv6 prefix ID, I'm directly "out of range : "The specified IPv6 Prefix ID is out of range. (wan) - (0) - (0)"

    Is it possible with /64 ?

    Thanks

    Best Regards,
    Fabien



  • Perhaps I'm missing something here, but the entire /64 should be available for your use.  I have no experience with IPv6 over PPPoE, but I  get a /56 from my provider over cable modem and I can have up to 256 /64 networks.  I had similar when I was using a 6in4 tunnel.



  • @fabienfs:

    But is it possible with Track Interface to use part of my IPv6 /64 prefix on the LAN interface?

    I think Track Interface for sure is based on the common concept of /64 subnet per LAN.

    So now you can have only one LAN and with Track Interface, if your ISP supplies just a prefix /64.
    You need more (say /60, /56 or /48) from your ISP, to be able to create more /64 LAN's.
    Using "DHCPv6 Server & RA" for each of your LAN, you can ofcourse manage the Less Significant 64 part as you wish. Put a Switch.


  • Banned

    Have you tried the "Request only an IPv6 prefix" checkbox on WAN?



  • @doktornotor:

    Have you tried the "Request only an IPv6 prefix" checkbox on WAN?

    Yes. There is my config :

    @hda:

    You need more (say /60, /56 or /48) from your ISP, to be able to create more /64 LAN's.

    The first ISP in Belgium (Proximus) provide only one /64 per client :-(