Hello,
I recently switched from a coaxial connection to fiber optic. During the transition, my ISP provided me with two devices: one is an ONT (Innbox G23 NT GPON) and the other is a router (Zyxel VMG8623-T50B). The fiber optic cable connects to the ONT, and then the LAN output goes into the Zyxel VMG8623-T50B router, which then connects to my Zyxel USG Flex 500.
Initially, the ISP's router (Zyxel VMG8623-T50B) was in "router" mode, so I requested the ISP to switch it to "bridge mode." Their support team set the VMG router to bridge mode and provided me with a username/password for establishing a PPPoE connection, but it didn't work. I monitored the network packets (using Wireshark), and only the initial PADI packet was sent.
After multiple contacts with support, I encountered an employee who surprisingly gave me completely different instructions - I had to provide the MAC address of my Zyxel Flex 500 (which is likely registered on the ISP's side) and set up automatic IP (DHCP). There was no mention of a PPPoE connection.
This setup works now, but I want to completely eliminate the VMG8623-T50B router. When I connect to the VMG8623-T50B, I can only see basic settings (others are apparently hidden or locked). Among these settings, I see "WAN information" with the following connections listed:
Would it be possible to completely remove the VMG8623-T50B router and connect the output from the ONT (Innbox G23 NT GPON) directly to my USG Flex 500?
I would appreciate any advice and assistance with the configuration. Screenshots are attached.
Devices:
I recently switched from a coaxial connection to fiber optic. During the transition, my ISP provided me with two devices: one is an ONT (Innbox G23 NT GPON) and the other is a router (Zyxel VMG8623-T50B). The fiber optic cable connects to the ONT, and then the LAN output goes into the Zyxel VMG8623-T50B router, which then connects to my Zyxel USG Flex 500.
Initially, the ISP's router (Zyxel VMG8623-T50B) was in "router" mode, so I requested the ISP to switch it to "bridge mode." Their support team set the VMG router to bridge mode and provided me with a username/password for establishing a PPPoE connection, but it didn't work. I monitored the network packets (using Wireshark), and only the initial PADI packet was sent.
After multiple contacts with support, I encountered an employee who surprisingly gave me completely different instructions - I had to provide the MAC address of my Zyxel Flex 500 (which is likely registered on the ISP's side) and set up automatic IP (DHCP). There was no mention of a PPPoE connection.
This setup works now, but I want to completely eliminate the VMG8623-T50B router. When I connect to the VMG8623-T50B, I can only see basic settings (others are apparently hidden or locked). Among these settings, I see "WAN information" with the following connections listed:
- ETHWAN_VLAN3907 (IPoE)
- ETHWAN_VLAN3906 (PPPoE): not connected
- ETHWAN_VLAN1101 (IPoE)
- ETHWAN VLAN1201 (IPoE): Bridged, this is apparently used for the internet
- ETHWAN_VLAN1401 (IPoE)
Two of these connections are used for IP telephony (which I do not use).
Would it be possible to completely remove the VMG8623-T50B router and connect the output from the ONT (Innbox G23 NT GPON) directly to my USG Flex 500?
I would appreciate any advice and assistance with the configuration. Screenshots are attached.
Devices:
- Innbox G23 NT GPON (ONT): datasheet attached
- Zyxel VMG8623-T50B: User Guide
- Zyxel USG Flex 500: Product Page