Script to grab Netgear CM600 cable modem signal levels

I need a script written to fetch the cable modem signal levels at regular intervals. The script should be able to login to the web interface of the cable modem and fetch the entries from the webpage. The webpage provides a snapshot of the current signal levels in that moment of time. I have a Splunk instance where I would use the script output as input to visualize the data over time. This is for a Netgear CM600 modem. More information including credentials once project is awarded. Bonus if you have splunk experience.