request_monitor.sh fails to handle invalid IPv4 input

Description

The request_monitor.sh script does not validate the user-supplied IP address before processing it.

When an invalid or malformed IPv4 address is provided, the script can produce arithmetic parsing errors instead of showing a clear validation message and exiting cleanly.

Steps to Reproduce

1. Run the script with an invalid IP address:
   ./scripts/request_monitor.sh invalid

2. Observe the output.

3. The script encounters parsing/arithmetic errors instead of rejecting the input with a clear error message.

Expected Behavior

The script should validate the IPv4 address before processing it and reject invalid input with a clear error message.

Impact

Malformed input can cause the monitoring workflow to fail unexpectedly.

Suggested Fix

Add IPv4 input validation before passing the value to the IP conversion/processing function.

Severity

Low — Input Validation / Reliability

Start with scripts/request_monitor.sh and trace how the user-supplied IP reaches the IP conversion or processing function. Run ./scripts/request_monitor.sh invalid and related malformed IPv4 inputs; done means invalid input produces a clear validation message and exits without arithmetic parsing errors.