BSNL FTTH LCO charging 4500 for new connection :(

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As I have mentioned in other posts, you'd need to configure an alias interface on the same port and assign an IP address in the same range as the management subnet. This can be easily done in OpenWRT or any custom firmware. Not sure if it's possible with the default OEM firmwares.

@partymonger @vishalrao

This is simply telling the device how to reach the management UI. This creates the appropriate routes allowing you to reach the modem IP address. Some devices accept incoming requests to the management portal only from an IP address in the the same subnet as the management subnet, so in that case, you'd need to enable NAT for that alias interface as well.

Again, this may not be feasible on stock firmware.
Default OEM firmware. I don't see this possibility.
 
Other than openwrt (love it, I do not buy any router not compatible with this), ddwrt and other custom firmware, this is also possible for devices with stock firmware which have a connection type called Russian or dual access pppoe (if your wan connection is through pppoe)
 
As I have mentioned in other posts, you'd need to configure an alias interface on the same port and assign an IP address in the management subnet. This can be easily done in OpenWRT or any custom firmware. Not sure if it's possible with the default OEM firmwares.

@partymonger @vishalrao

This is simply telling the device how to reach the management UI. This creates the appropriate routes allowing you to reach the modem IP address. Some devices accept incoming requests to the management portal only from an IP address in management subnet as source, so in that case, you'd need to enable NAT for that alias interface as well.

Again, this may not be feasible on stock firmware.
Any tutorial?
 
I wasn't aware that the management interface of modem or ONU can't be accessed on certain routers with default firmware. In this case, it is worth going for the router with built-in modem/ONU, rather than spending hours or days to make the bridge mode work.
 
^ Well, if the ONU is configured in bridge mode, it just acts like a dumb modem, you never really need to access the management UI for any config changes while in bridge mode right? ;)
 
@varkey How exactly does "modulation" take place with fibre optics on the customer end? How can an ONT/ONU be a "modem" in any way?

Unless you're implying there's this inside the ONU/ONT?

But even then, the terminology "modem" doesn't apply to fibre optics?

Unless I am wrong? I want somebody to shed some light on this.

People do not take networking terminologies serious for some reason.

Edit: @varkey Why do you react with rolling eyes to almost all my comments? 😂
 
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^ Well, if the ONU is configured in bridge mode, it just acts like a dumb modem, you never really need to access the management UI for any config changes while in bridge mode right? ;)

I visited my ONU UI in recent days for the following reasons...

1. To enable IPv6 (even though BSNL hasn't activated it).
2. To check the firmware version.
3. To check the line statistics.
4. To check the tech used... GPON or EPON.
 
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