Security+ ยท 3.0 Security Architecture
NAT (Network Address Translation)
A router technique that rewrites packet addresses so multiple internal hosts can share one public IP (SNAT/masquerade) or so external traffic can reach internal services (DNAT/port-forward).
How this shows up at NCAE
The MikroTik router's DNAT rules are why external services score at all. The #1 most frequent error at regional. 'DNS EXT FWD can't contact DNS server'. is almost always a missing DNAT rule for UDP/TCP port 53.
Error patterns associated with this term
Competition failures where this Security+ concept applies.