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

CIDR

Classless inter-domain routing (CIDR) is an IP addressing scheme for creating unique identifiers for networks and individual machines. This allows for specificity in configuring routing and firewall rules for a network.

CIDR notation is the notation system for simply communicating and calculating these ranges. A network CIDR looks like 172.10.15.0/24 (for IPv4 addressing). Each block seperated by a “.” accounts for 8 bits of an IPv4 address, which is 32 bits. In this case, this CIDR range corresponds to the IP range 172.10.15.0/24 - 172.10.15.255. This is because the /24 indicates that the first 24 bits are fixed.