Internet TCP port 161 is primarily used by Simple Network Management Protocol (SNMP). SNMP is a protocol used for managing devices on IP networks. Devices that typically use SNMP include routers, switches, servers, workstations, printers, modem racks, and more. It's widely used in network management systems to monitor network-attached devices for conditions that warrant administrative attention.
TCP port 161 is primarily used for Simple Network Management Protocol (SNMP) services. In the past, hackers have exploited this port to gain unauthorized access to network devices. They often do this by using brute force attacks to guess the community strings (similar to a password) that are used for authentication. Once they gain access, they can modify the configuration of network devices, potentially causing significant disruption. In some cases, they may also be able to access sensitive information about the network. This is why it's crucial to secure SNMP services and use strong, unique community strings.
