Hacking V2801F, TWCGPON657 & DFP-34X-2C2 to suite your ISP Fiber
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Hacking RTL960x

  • Hacking V2801F, TWCGPON657 & DFP-34X-2C2 to suite your ISP Fiber
  • GPON market is a mess, plus explicit OMCI cause ONU Stick did not work
  • 4-port ONU Emulation Table

Note to Malaysia Visitor

You can purchase from CureComp Technology with pre-programmed compatible ONT for Malaysia Fibre Network (TM-Unifi, TM-Maxis, TM-DiGi, TIME, Allo)

Hire us for Network Consultant, Upgrade, 2.5Gbps Unifi Internet and more...


RTL960x Family

Stick SoC NAND Mode 4-port EthUni
T&W TWCGPON657 RTL9601CI 16MiB (128Mb) VEIP, PPTP YES, fw: C00R657V2801F
Ubiquiti UFiber Instant RTL9601CI 8MiB (64Mb) VEIP, PPTP NO
ODI DFP-34X-2C2 RTL9601D 8MiB (64Mb) VEIP, PPTP YES, fw: 220304 & 220414
Nokia G-010S-Q RTL9601CI 16MiB (128Mb) ? ?


Stick SoC NAND Mode 4-port EthUni
Huawei MA5671a Intel ? PPTP NO
Nokia G-010S-P Intel ? PPTP NO
Nokia G-010S-A Intel ? PPTP NO


Code Full name Meaning
PPTP Physical Path Termination Point OLT directly sends VLAN data to each physical interface of ONU
VEIP Virtual Ethernet Interface Point Virtualizes the total interface of an ONU, ONU LAN port provisioning

Guide, Links, Info

  1. Backup env, env2 & config partition Guide by @tdmadam
  2. Setup XPON ONU SFP Stick
  3. flash get, flash set
  4. Diagnostic
  5. TWCGPON657 × V2801F Firmware
  6. V2801F Auto Reboot
  7. Firmware Emulator

Sucess Story

List of users has successfully ditch stock ONU!

  1. @stich86 2.5GbE Internet
  2. My journey connecting fiber internet to my router
  3. Hinet users in TW

Where to buy?

ODI DFP-34X-2C2 Recommended!

  1. HSGQ @ Taobao Mall
  2. Fibershow @ AliExpress (Choose XPON)


  • Much cheaper than VSOL V2801F & CarlitoxxPro CPGOS03-0490 v2.0!
  • Using latest SoC RTL9601D!
  • Support HEX PLOAM Password! Using 220304 Firmware
  • Support 2.5GbE via HiSGMII or 2500Base-X! See Compatibility, SpeedTest
  • Using newer SFP Body with intergrated heatsink See Picture
  • Very efficient, just 45°C without fan!
  • Automatic/Transparent bridge like VSOL V2801F! Using 220304 Firmware
  • Support 4-port ONU Emulation

V2801F Alternative

  1. TWCGPON657 with V2801F Firmware as V2801F substitute
  2. Opton GP801R Found by @AreYouLoco


  • Limited 2.5GbE Support wrong LAN_SDS_MODE can lock you out, no auto switch
  • HEX PLOAM Password require modification from @zry98
  • Automatic/Full Transparent
  • Support 4-port ONU Emulation
  • Modern WebGUI

Triple Play Multiple ISP Problem, 4-port ONU Emulation

  • Majority fiber vendor support multiple ISP
  • ISP provide Triple Play service (Internet, VoIP & IPTV)
  • Vendor supply 4-port ONU for each service or ISP

4-port ONU Emulation

Based on ru-board, xPON Stick with 4-Port Emulation support is limited!

ONU LAN Port Binding example

If you using 4-port ONU like Huawei HG8240H5, Nokia G-240G-E and Router connected to ONU LAN 2/3/4, you have limited option, I recommend ODI DFP-34X-2C2 with 220304 or newer firmware.

Table 4-port ONU Emulation

Here list of xPON Stick on the market that support 4-port ONU Emulation:

xPON Stick Huawei HG8240H LAN Port Firmware
Root 1 2 3 4 PVID
Huawei MA5671a ✔️ ✔️ OpenWRT
Nokia G-010S-P ✔️ ✔️ OpenWRT
ODI DFP-34X-2C2 ✔️ ✔️ 210702, 220527
ODI DFP-34X-2C2 ✔️ ✔️ ✔️ ✔️ ✔️ 220304, 220414
TWCGPON657 ✔️ ✔️ ✔️ ✔️ ✔️ C00R657V2801F_V1.9.0-220404.tar
V-SOL V2801F ✔️ ✔️ ✔️ ✔️ ✔️ Stock Firmware

✔️ Port Emulation Support

Not Supported

Root mean your ONU is All in One where PPPoE/DHCP ended inside ONU (not bridge/route mode)

PVID is VLAN untagging, at router side, WAN connected without VLAN, useful consumer router such as TL-XDR5480 without VLAN support

Multiple ISP


Multiple Service