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Forum Replies

  1. Hi Diana,

    Glad to hear you like it!

    There’s not really a short answer to your question. Technically, ND doesn’t require MLD to work.

    IPv6 ND uses multicast and the solicited node multicast addresses.

    Using multicast instead of broadcast sounds effective but in reality, your ND traffic is probably still broadcasted since your L2 switches don’t know where to forward the multicast traffic to.

    To improve this, you could enable MLD snooping on the switches. Your hosts will have to report what they want to receive through MLD and then the switch will be able to deliv

    ... Continue reading in our forum

  2. Hello Rahul

    Whenever you configure an interface to function as an IPv6 interface, it automatically sends out NS messages.
    This will occur even BEFORE any IPv6 addresses have been configured. You can see from your capture and from your CLI that you have posted, that both R1 and R2 have link-local addresses of FE80::C001:8FFF:FEEF:0 and FE80::C001:8FFF:FEF7:0 respectively.

    As for the NA message, those are sent under two conditions: The first is as a response to an NS and the second when there is a change in the link-layer address of a node on a local link. Wh

    ... Continue reading in our forum

  3. if you also have a global unicast address configured on an interface, this ipv6 NS/NA process should it be done again by the router, for every type of ipv6 addr (unique local, global unicast, , link-local)?

  4. @castrojuanj
    Hello Juan,
    I hope you are doing well,
    I have labed your question and took a packet capture to see if I can help you understand NDP better.

    First off a link-local address is configured in two ways.

    1. The administrator specifies the link-local address to be used
    2. The local router uses eui-64 to generate the proper IP address for link-local use

    Now if you have a unique local and global unicast IP address assigned to the same interface and it receives an RS, it will the respond with an address for both unique local and global unicast addresses. So no t

    ... Continue reading in our forum

  5. Yes, off course it helps !

    Thank you so much for your time and reply. Have a nice weekend.

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