DRAG DROP Drag and drop the IPv6 address type characteristics from the left to the right. 
Be careful with "configured only once per interface". That's what usually trips people up on link-local. For the mapping: attached to a single subnet, configured only once per interface goes with Link-Local. FC00::/7 prefix, exclusive internal use is for Unique Local. If Cisco ever lets you do more than one link-local per interface (besides multi-IPv6 configs), that flips things but pretty sure standard IOS doesn't! Agree?
- Link-Local: attached to a single subnet, configured only once per interface
- Unique Local: addresses with prefix FC00::/7, exclusive internal use
Yep, that's how I matched them too. Link-Local goes with "attached to a single subnet" and "configured only once per interface" since they're limited to the local link and each interface gets just one active. Unique Local fits with "addresses with prefix FC00::/7" and "addressing for exclusive use internally without Internet routing." That's what you'd expect from IPv6 private addressing. Pretty sure this is spot on but let me know if anyone thinks otherwise.
Not sure I agree with mapping "configured only once per interface" to Unique Local, since Link-Local is the one typically auto-assigned and limited to a single address per interface. Unique Local's FC00::/7 prefix and "exclusive internal use" both point to ULA only being for private comms, not link-specific.
- Link-Local: attached to a single subnet, configured only once per interface
- Unique Local: addresses with prefix FC00::/7, exclusive use internally
Common trap is thinking ULA is linked to interfaces like Link-Local. Anyone else map it this way?
