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Forum Replies

  1. Two questions,
    - the first RS that the host sent, what are the source/destination IPs/MACs in use in the RS packet ?
    - If the gi0/1 interface on R2 was getting shutdown immediately how could the host receive the RA msg from R2 ? Is it part of port shutdown procedures to send out RA ?
    - How about a router shutdown? Is RA being generated ?

  2. Hello Ray,

    In the RS, the source MAC address is the host’s MAC address, the destination is the “all routers multicast” destination FF02::2.

    About the “shutdown procedure”, I just labbed this up to see how it works. Take a look at this wireshark capture:


    The first packet (length 118) is a regular router advertisement. The second packet (length 102) is sent when the interface is shut but also when you reload the router.

    The difference between the two is that in the “goodbye” router advertisement, all ICMPv6 options

    ... Continue reading in our forum

  3. Good question.
    I just keep a doubt, RA is sent periodically like BPDU or OSPF hello interval?

  4. So I see this Lifetime 1800 sec in show ipv6 routers output, I guess that´s like a hold time in OSPF, how often is hello/keepalive timer sent? in IPv6 RA

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