NET — Networks and Communication
NET.1.1 Network Architecture and Design
Most institutions today require data networks for their business operations and the fulfillment of their professional tasks, through which, for …
NET.1.2 Network Management
Reliable network management is a fundamental prerequisite for the secure and efficient operation of modern networks. For this purpose, it is necessary …
NET.2.1 WLAN Operation
Wireless LANs (WLANs) can be used to build wireless local area networks or to extend existing wired networks. To this day, almost all WLAN components …
NET.2.2 WLAN Use
Wireless LANs (WLANs) can be used to build wireless local area networks or to extend existing wired networks. To this day, almost all WLAN components …
NET.3.1 Routers and Switches
Routers and switches form the backbone of today's data networks. A failure of one or more of these devices can lead to the complete standstill of the …
NET.3.2 Firewall
A firewall is a system of software and hardware components used to securely couple IP-based data networks. For this purpose, a firewall structure is …
NET.3.3 VPN
Virtual Private Networks (VPNs) can be used to transmit sensitive data over untrusted networks such as the Internet. A VPN is a virtual network that …
NET.3.4 Network Access Control
Network Access Control (NAC) secures network access at the end device level through identity verification (authentication) and regulation …
NET.4.1 PBX Systems
A telecommunications system, or PBX for short, can internally connect the telephones of an institution and externally connect them to a public …
NET.4.2 VoIP
Voice over IP (VoIP) refers to telephony over data networks, in particular over the Internet. Special signaling protocols are used to transmit …
NET.4.3 Fax Machines and Fax Servers
This building block examines the security aspects of transmitting information via standard fax machines and fax servers. The transmitted information …
NET — Networks and Communication
BSI IT-Grundschutz Building Blocks of the Networks and Communication Layer