Simple definition
SLAAC allows an IPv6 host to automatically configure its address.
Technical definition
Stateless Address Autoconfiguration operates Router dictas to build a stateless IPv6 address DHCP compulsory.
What is it used for?
quickly deploy IPv6 address on a LAN.
Practical example
a post receives the router’s IPv6 prefix and then builds its global address.
Common issues
- RA blocked
- incorrect prefix
- DNS not distributed according to chosen mode
Key takeaway: Always adapt the diagnosis to the product version and the architecture actually deployed.