Deterministic NAT

Deterministic NAT allows to eliminate the need for logging because in this mode the subscriber's IP address is always mapped to the same external IP and port range.

Algorithmic Allocation of IP addresses in terms of Deterministic NAT.

The Public IPv4 address and Port range for a given end user are fixed. Once the port range is determined, the allocation of a given port for a new flow is performed dynamically. As a result, users keep the same public address all the time, there is a lower ratio of Users/Public address, and no log messages needed at all.

Deterministic NAT is one of NFWare vCGNAT modes.

vCGNAT is a centralized NAT placed in the service provider's network to help extend the life of an IPv4 network infrastructure and mitigate IPv4 address exhaustion by using address and port translation in large scale. It thus solves the problem of IPv4 addresses exhaustion, working entirely in a virtual environment without the need for specialized, dedicated hardware. It provides the high-quality IP addresses and throughput speed that telcos demand in order to deliver the best customer experience. NFWare is one of the first IP routing technology companies to offer a virtualized CGNAT.