NAT
Public IP vs Private IP: What Your Router Is Hiding
07/15/2026
Public addressing supports global routing, not guaranteed reachability; compare the router's WAN address with the observed external address and check upstream NAT, VPNs, IPv6, and firewall policy separately.
NAT vs Routing: What Happens When Traffic Leaves Your LAN
07/15/2026
Routing decides where packets go. NAT rewrites addresses. Home networks usually use both, but they are not the same job.