Re: Single-session dual-stack subscribers - how it works?

Hello karand.

looks like ther is issue with single-session dual-stack.

With configuration like this:

dhcpv6 {
    overrides {
        delete-binding-on-renegotiation;
        dual-stack DS;
    }
    group ipv6-stacked-subscribers {
        interface demux0.0;
    }
}
pool-match-order {
    ip-address-first;
}
duplicate-clients-in-subnet incoming-interface;
overrides {
    client-discover-match incoming-interface;
    dual-stack DS;
}
group ipv6-stacked-subscribers {
    overrides {
        delete-binding-on-renegotiation;
    }
    interface demux0.0;
}
dual-stack-group DS {
    authentication {
        username-include {
            user-prefix DUAL-STACK;
            interface-name;
        }
    }
    dynamic-profile IP-DHCPv4-DHCPv6;
    classification-key {
        mac-address;
    }
}

I removed protocol master from configuration

So now i got bindings for subscribers on dhcpv4 and dhcpv6

but

demux0.3221225491   0x8100.4020 0x8100.3000                                           default:default
demux0.3221225491   10.200.4.7                                                        default:default
demux0.3221225491   10.200.4.8                              DUAL-STACK.ge-0/0/4:4020-3000       default:default
*                   2a22:f440:a:3::9

As you can see i got subscriber with 10.200.4.7 that went pass authorization process

 run show dhcp server binding
IP address        Session Id  Hardware address   Expires     State      Interface
10.200.4.7        21          c4:12:f5:d4:aa:eb  291         BOUND      demux0.3221225491

And dual-stack subscriber with ip address 10.200.4.9 and dhcpv6 binding:

run show dhcpv6 server binding
Prefix                  Session Id  Expires  State    Interface    Client DUID
2a22:f440:a:3::9/128    22          595      BOUND    demux0.3221225491 LL_TIME0x1-0x22208122-c8:ff:28:26:96:1f