new and old protocols. For example, IPv6 can be deployed on public endpoints such as load balancers, proxies, or other forms of NAT, with backend traffic routed over IPv4 or IPv6. See also End-to-end connectivity Interactive Connectivity Establishment (ICE) Session Traversal Utilities for NAT (STUN) Traversal Using Relay NAT (TURN) Multilayer switch References Computer network security 1990s neologisms