Another radvd topic - Different auto configuration across LAN interfaces



  • 2.1.5; WAN DHCP-PD obtaining a /60 from Comcast

    Issue / Observation:  radvd.conf is generating totally different configuration for the LAN and OPT interfaces.

    The LAN is getting a configuration for DHCPv6 Server.  OPT is what I would call a typical SLACC configuration.

    DHCPv6 is happily running and handing out addresses on the LAN.  DHCPv6 configurable options are only for static addresses interfaces, so it runs "in the blind".

    The router advertisement timers are also different.  Again, no way for the user to adjust.

    Is this expected behavior???

    =============  /var/etc/radvd.conf  ==================================

    Automatically Generated, do not edit

    Generated for DHCPv6 Server lan

    interface igb0 {
            AdvSendAdvert on;
            MinRtrAdvInterval 5;
            MaxRtrAdvInterval 20;
            AdvLinkMTU 1500;
            AdvDefaultPreference high;
            AdvManagedFlag on;
            AdvOtherConfigFlag on;
            prefix 2601🅰xxxx:xx0::/64 {
                    DeprecatePrefix on;
                    AdvOnLink on;
                    AdvAutonomous on;
                    AdvRouterAddr on;
            };
            route ::/0 {
                    RemoveRoute on;

            };
            RDNSS 2601🅰xxxx:xx0:225:90ff:fef1:c230 { };
            DNSSL localdomain { };
    };

    Generated config for dhcp6 delegation from wan on opt1

    interface igb1 {
            AdvSendAdvert on;
            MinRtrAdvInterval 3;
            MaxRtrAdvInterval 10;
            AdvLinkMTU 1500;
            AdvOtherConfigFlag on;
                    prefix 2601🅰xxxx:xx1::/64 {
                    AdvOnLink on;
                    AdvAutonomous on;
                    AdvRouterAddr on;
            };
            RDNSS 2601🅰xxxx:xx1:225:90ff:fef1:c231 { };
            DNSSL localdomain { };
    };