A specific type of network hardware that is directly connected to the network’s communication path is referred to as a “In-line network device.” It provides services like security, data loss prevention, and traffic management by keeping an eye on, filtering, or modifying the network traffic passing through it.Two devices, like a router and a switch or a firewall and a core switch, are connected via a network link. Traffic moves straight between these devices in a typical setup.Before permitting packets to move between network segments, firewalls inspect and filter them using rules.Before application-layer threats reach web servers, Web Application Firewalls (WAFs) inspect HTTP/HTTPS traffic.As packets flow through the device, intrusion prevention systems instantly identify and stop malicious traffic patterns.To find threats concealed within encrypted sessions, SSL/TLS inspection appliances decrypt, inspect, and re-encrypt traffic.Data Loss Prevention (DLP) systems keep an eye on outgoing traffic and prevent critical data from being transmitted without authorization.
