FiOS Actiontec MI424WR-GEN3I router

Just recording a datapoint on what my current version is:

Firmware Version:	40.21.18
Model Name:	MI424WR-GEN3I
Hardware Version:	I
Serial Number:	CSXI3430506051
Physical Connection Type:	Coax
Broadband Connection Type:

Still seeing these messages hourly:

May 10 18:02:21 2016 System Log CWMP Periodic Inform 204 No Content
May 10 18:02:17 2016 System Log CWMP Periodic Inform challenge response with 200 OK from server
May 10 18:02:16 2016 System Log CWMP Periodic Inform initial 401 challenge
May 9 18:02:21 2016 System Log CWMP Periodic Inform 204 No Content
May 9 18:02:17 2016 System Log CWMP Periodic Inform challenge response with 200 OK from server
May 9 18:02:16 2016 System Log CWMP Periodic Inform initial 401 challenge
May 8 18:02:22 2016 System Log CWMP Periodic Inform 204 No Content
May 8 18:02:18 2016 System Log CWMP Periodic Inform challenge response with 200 OK from server
May 8 18:02:16 2016 System Log CWMP Periodic Inform initial 401 challenge

This is apparently " CPE WAN Management Protocol (CWMP)", part of the TR-069 standard; the spec is 200+ pages.

There are a number of Open Source implementations, the github repo at

 pivasoftware/easycwmp: EasyCwmp  

(website: EasyCwmp - TR069 cwmp client open source - About )

seems to be the most active.

Something you could install on your OpenWRT router.