CONE NAT and Symmetric NAT - Birost
blog.birost.com › aCONE NAT and Symmetric NAT 1. Division of NAT RFC3489 in the NAT implementation divided into four categories: 1. Full Cone NAT full cone NAT 2. Tel Restricted Cone the NAT limit tapered the NAT (as will be appreciated IP limit) 3. Port Tel Restricted Cone the NAT port restricted cone the NAT ( the IP Port + limit) 4. the Symmetric NAT Symmetric NAT