A BIG-IP Administrator discovers malicious brute-force attempts to access the BIG-IP device on the management...

The BIG-IP management interface (MGMT port) is controlled through System settings , not through the Network menu.

SSH access on the management interface is configured here:

System → Configuration → Device → General → SSH Access / SSH IP Allow

This section allows the administrator to:

Enable or disable SSH service

Restrict SSH access to specific IP addresses or subnets

Apply security policies to the management interface

Why the other options are incorrect:

A. Network > Interfaces

Used for data-plane physical interface settings, not management plane SSH restrictions.

B. Network > Self IPs

Controls in-band management or data-plane access, not the dedicated management port.

D. System > Platform

Used for hostname, time zone, LCD contrast, hardware settings — not SSH security on the management port.

Therefore, restricting SSH access to the management interface must be done under:

✔ System → Configuration → Device → General

Which corresponds to Option C .