Hello, dear Community members!
This post highlights the Huawei ONT default IPs, usernames and passwords. Have a look below to see more on the topic.

KNOWLEDGE SHARING
This are Huawei's ONT's:
HG8010/HG8010H/HG8012H/HG8040/HG8045/HG8045Q/HG8110/HG8245/HG8245A/HG8245D/HG8245H/HG8245Q/HG8245Q2/HG8245T
/HG8245U/HG8247/HG8247A/HG8247H/HG8247T/HG8310M/HG8311/HG8321/HG8321R/HG8447/HG8540M/HG8546M.
| Model | Web login default IP | Terminal username | Terminal password |
| HG8010 | 192.168.100.1 | root | admin |
| HG8010H | 192.168.100.1 | root | admin |
| HG8012H | 192.168.100.1 | root | admin |
| HG8040 | 192.168.100.1 | root | admin |
| HG8045 | 192.168.100.1 | root | admin |
| HG8045Q | 192.168.100.1 | root | admin |
| HG8110 | 192.168.100.1 | root | admin |
| HG8245 | 192.168.100.1 | root | admin |
| HG8245A | 192.168.100.1 | root | admin |
| HG8245D | 192.168.100.1 | root | admin |
| HG8245H | 192.168.100.1 | root | admin |
| HG8245Q | 192.168.100.1 | root | admin |
| HG8245Q2 | 192.168.100.1 | root | admin |
| HG8245T | 192.168.100.1 | root | admin |
| HG8245U | 192.168.100.1 | root | admin |
| HG8247 | 192.168.100.1 | root | admin |
| HG8247A | 192.168.100.1 | root | admin |
| HG8247H | 192.168.100.1 | root | admin |
| HG8247T | 192.168.100.1 | root | admin |
| HG8310M | 192.168.100.1 | root | admin |
| HG8311 | 192.168.100.1 | root | admin |
| HG8321 | 192.168.100.1 | root | admin |
| HG8321R | 192.168.100.1 | root | admin |
| HG8447 | 192.168.100.1 | root | admin |
| HG8540M | 192.168.100.1 | root | admin |
| HG8546M | 192.168.100.1 | root | admin |
But this may differ. You can look for the default IP address on the nameplate on the rear side of an ONT. This is the most accurate way to query.
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