What is “NAT traversal” in networking?
a) A technique used to establish connections across devices behind a NAT router
b) A method for assigning IP addresses
c) A protocol for encrypting data packets
d) A tool for monitoring network performance
Answer:
a) A technique used to establish connections across devices behind a NAT router
Explanation:
NAT traversal is a technique used in networking to establish connections between devices that are behind a NAT (Network Address Translation) router. NAT routers hide devices’ private IP addresses behind a public IP address, which can complicate direct communication between devices.
NAT traversal methods, such as STUN (Session Traversal Utilities for NAT) and TURN (Traversal Using Relays around NAT), help devices establish peer-to-peer connections by bypassing the limitations of NAT routers.
NAT traversal is commonly used in applications like voice-over-IP (VoIP), video conferencing, and online gaming to ensure seamless communication between devices.