DHCPv6 client: Handling of NotOnLink incorrect

[maribu]

DHCPv6 client: Handling of NotOnLink incorrect

[benpicco]

Do you have a packet capture of what RIOT is requesting there?

[maribu]

The request from the RIOT device:

DHCPv6
    Message type: Request (3)
    Transaction ID: 0x9c58a3
    Client Identifier
        Option: Client Identifier (1)
        Length: 10
        DUID: 00030001a4cf1244e814
        DUID Type: link-layer address (3)
        Hardware type: Ethernet (1)
        Link-layer address: a4:cf:12:44:e8:14
    Server Identifier
        Option: Server Identifier (2)
        Length: 10
        DUID: 00030001c87f54e24f50
        DUID Type: link-layer address (3)
        Hardware type: Ethernet (1)
        Link-layer address: c8:7f:54:e2:4f:50
    Option Request
        Option: Option Request (6)
        Length: 2
        Requested Option code: SOL_MAX_RT (82)
    Identity Association for Prefix Delegation
        Option: Identity Association for Prefix Delegation (25)
        Length: 41
        IAID: 00190009
        T1: 0
        T2: 0
        IA Prefix
            Option: IA Prefix (26)
            Length: 25
            Preferred lifetime: 0
            Valid lifetime: 0
            Prefix length: 64
            Prefix address: ::
    Elapsed time
        Option: Elapsed time (8)
        Length: 2
        Elapsed time: 0ms

The reply from the DHCPv6 server:

DHCPv6
    Message type: Reply (7)
    Transaction ID: 0x9c58a3
    Server Identifier
        Option: Server Identifier (2)
        Length: 10
        DUID: 00030001c87f54e24f50
        DUID Type: link-layer address (3)
        Hardware type: Ethernet (1)
        Link-layer address: c8:7f:54:e2:4f:50
    Client Identifier
        Option: Client Identifier (1)
        Length: 10
        DUID: 00030001a4cf1244e814
        DUID Type: link-layer address (3)
        Hardware type: Ethernet (1)
        Link-layer address: a4:cf:12:44:e8:14
    SOL_MAX_RT
        Option: SOL_MAX_RT (82)
        Length: 4
    DNS recursive name server
        Option: DNS recursive name server (23)
        Length: 16
         1 DNS server address: fd71:af38:1d57::1
    Identity Association for Prefix Delegation
        Option: Identity Association for Prefix Delegation (25)
        Length: 18
        IAID: 00190009
        T1: 0
        T2: 0
        Status code
            Option: Status code (13)
            Length: 2
            Status Code: NotOnLink (4)

And the whole exchanged captured at the OpenWrt Box: https://mari-bu.de/capture.pcapng