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

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IPv6 unspecified

IPv6 unspecified

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

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IPv6 unspecified

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(light music) - An IPv6 unspecified address is very unique in that all 128 bits are zeros. Consider this example. Let's say that PC number one wants to go out to router R1 in an attempt to learn the network. In other words, the prefix on which a PC one exists because right now maybe PC one doesn't know it could send out a packet destined for the IP version six, multicast address of FF02::2 that's all IPv6 speaking routers on the local link router R1. In this case, that could be the destination, but the source could be colon colon. That's the unspecified address. It's all zeros and we write it again as colon colon. When would we be able to have our IPv6 address as a pc? all zeros, how does that work? Well, a couple of examples. We could use it as our source address when we're sending out a neighbor solicitation message because there's a way for an IPv6 client to dynamically generate its own IPv6 address. It could go out to the router and it could say, hey, can you tell me what network…

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