IPset Network Segmentation Virtual Tunnel Interface (VTI) Encapsulating Security Payload (ESP) Network Address Translation (NAT) Source/Destination Check Subnet TLS Cipher Suite VPC 3DES Advanced Encryption Standard Autonomous System Border Gateway Protocol CIDR Clientpack Destination NAT Diffie-Helman Encryption Internet Key Exchange (IKE) IP Forwarding Maximum Transmission Unit (MTU) Network Sniffer OpenVPN Overlay Network Perfect Forward Secrecy (PFS) Security Association (SA) SHA SNMP Transmission Control Protocol (TCP) Transport Layer Security (TLS) User Datagram Protocol (UDP) VNS3 Peer VNS3 Routing Agent Wireguard Workforce Service Edge x509 Certificate Ipsec

Network Address Translation (NAT)

Network Address Translation is the process by which a local IP address is translated into a global IP address to provide network access to the “internal” local IP range. NAT provides multiple devices connectivity to the internet through a single public IP address. For instance, a locally routable network of 10.1.0.0/16 might have access to the internet via a gateway at 54.32.30.10. In this configuration, a user with IP 10.1.0.51 would access the internet from the IP 54.32.30.10. The gateway would be performing Network Address Translation to properly route traffic back to the initiating IP.

NAT has greatly extended the lifetime of IPv4 addresses as many networks now need only 1 publically routable IPv4 address. This serves as the gateway for a local network. That local network can be arbitrarily large.

Setting up VNS3 as a (cheaper) NAT

Its easy to set up VNS3 as a NAT.