See 'WikiDevi' @ the Internet Archive (MW XML, Files, Images)
upgraded MW to 1.30 - maybe things are slightly less broken
"G801_V3_1" appears to be silkscreened on the board in the FCC photos (along with addl. PCB text ["MS-ME198407", "94V-0", manuf. date / part lot, etc]).
This device is using a nuvoton audio chip.
The default IP is per the FCC manual.
- The web interface shown in the manual looks rather similar (if not identical) to the DD-WRT interface.