From the course: Cisco Certified Network Associate (CCNA) v1.1 (200-301) Cert Prep

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IPv6 solicited-node multicast

IPv6 solicited-node multicast

From the course: Cisco Certified Network Associate (CCNA) v1.1 (200-301) Cert Prep

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IPv6 solicited-node multicast

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(intriguing electronic music) - [Instructor] Every IPv6 address that we assign to a device is going to have a corresponding solicited-node multicast address. We don't have to create that address, it's created for us automatically, but there's one that corresponds to every IPv6 address that we assign. For example, let's say that we want to send a multicast to router R2s solicited-node multicast address. The destination address is going to be FF02::1:FF00:2. We know it's multicast because it begins with FF. And most of the remaining bits are also required by a solicited-node multicast address. Specifically, the first 104 bits are represented by FF02::1:FF. The last 24 bits, for a total of 128 bits, the last 24 bits, they come from the last 24 bits in the IP version 6 address that has this solicited-node multicast address that corresponds to it. And in the literature, you'll see this written as FF:02::1:FF/104. Because that defines the first 104 bits of our 128 bit IPv6 address. And we…

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