- • RFC 6888, RFC 4787
- • GRE tunneling support via built-in NAT (PPTP/GRE ALG)
- • Full Cone – Ensures transparent peering protocols (torrents, games)
- • Paired IP address pooling
- • Hairpinning
- • Limits – Each pool of IP addresses is individually set to limit
- • Broadcast Logging
- • NAT 1: 1 – simplifies routing in the operator’s network
Carrier-grade NAT also known as CGN, CGNAT, large-scale NATSpectre DPI Carrier Grade NAT function allows the carrier to share one public IPv4 address with multiple subscribers, prolongs the use of the limited IPv4 addressing space, and simplifies the transition to IPv6 addressing. Since the DPI platform is designed for huge loads with deep traffic analysis, it can easily perform the address translation function (Carrier-Grade NAT), in addition to which, the customer receives a full set of standard DPI tools.
Use of Paired IP address pooling functionAll the subscriber’s connections from one “gray” internal address are anchored to one external “white” IP-address.
Setting limits on TCP and UDP connections for subscribersFor each IP address pool, number of TCP and UDP connections is limited for the subscriber individually, which allows the carrier to allocate safely resources of addressing space between corporate and private clients. When not activated, connections are closed releasing ports.
Usage of Hairpinning TechnologySubscribers inside NAT intercommunicate not translation addresses. Any machine on the local network outside of NAT can access another machine on the same network at the external address of the router.