Reti locali (LAN: wired a wireless), Reti virtuali (VLAN, VPN), Reti geografiche (WAN), DeMilitarized Zone (DMZ) Connessioni a Internet Local Internet Registry (LIR) e Autonomous System (AS) Interior (OSPF, EIGRP, RIP) and Exterior (BGP, EGP) IP Routing Quality of Service (QoS), Traffic Shaping, Load Balancing Architetture Firewall (Packet Filtering, ACL, BlackList) Architetture di Load Balancing Intrusion Detection System (IDS) e Intrusion Prevention System (IPS), HoneyPot Naming Services (DNS, WINS, NIS)Authentication, Authorization and Access Services (Radius, IEEE 502.1x) E-Mail Services (exchanger, relayer, mailhub – SMTP, IMAP, POP3) Web Services (HTTP/HTTPS) File Transfer (FTP, TFTP, HTTP) Proxy and reverse Proxy Services Content Filtering (AntiVirus, AntiSpam, URL, ecc.) Storage and Backup (iSCSI, NFS, SMB, AFP, WebDAV)