Hi everyone how are you after so long !!!
I am finding almost impossible to get some ONUs working, specially Huawei and other brands.
The connection on the CPE–>ACS direction works ok.
ONUs shows online.
However when I try to Summon or any other action, which goes in the ACS–>CPE direction, I get the famous “Device Offline” messages.
Trying to dig in the web, found that port 7547 shows filtered in all these ONUs.
nmap -p 7547 10.10.10.10
Starting Nmap 7.80 ( https://nmap.org ) at 2026-11-04 17:04 UTC
Nmap scan report for 10.10.10.10
Host is up (0.0023s latency).
PORT STATE SERVICE
7547/tcp filtered cwmp
and most of the ONUs, for not saying all of them, do not allow to enable the CWMP Port, or a specific port such as 7547 for the TR WAN.
Even tried to disable firewall, add Port Filter rules, edit XML file, to add the 7547 port, and nothings has worked.
Examples of known Huawei ONUs: 8546M, 8141A5…old WEB GUI, new WEB GUI…
I am stuck with this for days…
I do have one single Chinese ONU that works on the 58000 port and that appears to be opened by the ONU for the tasks, no it works flawlessly.
Using same OLT, same VLAN for all the tests, which means that MKT–OLT–ACS Networking is working fine.
TR WAN Subnet being 10.10.10.0/24 and ACS Server 192.168.10.249
Ping from ACS to all ONUs working fine.
But any connection from ACS to CPE times out, being dropped by ONU.
Any ideas???
Thanks in Advance !!!