A: ACL: Access Control List ANSSI: Agence nationale de la sécurité des systèmes d'information C: CIDR: Classless Inter-Domain Routing D: DHCP: Dynamic Host Configuration Protocol DNS: Domain Name System F: FTP: File Transfer Protocol H: HTTP: Hypertext Transfer Protocol I: IP: Internet Protocol IPBX: Internet Protocol Private Branch eXchange N: NAT: Network Address Translation NDP: Neighbor Discovery Protocol NTP: Network Time Protocol O: OSPF: Open Shortest Path First P: PABX: Private Automatic Branch Exchange PAT: Port Address Translation PoE: Power over Ethernet T: TCP: Transmission Control Protocol TDM: Time Division Multiplexing TFTP: Trivial File Transfer Protocol ToIP: Telephony over Internet Protocol U: UDP: User Datagram Protocol V: VLSM: Variable-Length Subnet Masking