Huawei HG8120C xPON (EPON and GPON) ONT with telephone port (no wireless)

Dear Forum members, I suggest that you do your due diligence and use case analysis before buying this ONT. In my case the ONT didn’t work in the “dumb modem mode” as suggested by varkey neither I was able to make a tagged VLAN bridge mode connection from my openwrt or tomato router. My Syrotech is able to do it.
VoIP works for incoming but not outgoing.Results may be different for different persons.

Your success with this ont will depend on your isp and LCO configuration.

I purchased this ONT from Varkey and it didn’t work for my use case and hence it is lying unused as Varkey refused to take it back (I don’t blame him, he never said that he’ll take it back in case it doesn’t works for you).

Anyone wants this ont can buy from me for Rs.1750.
 
^Have you tried route mode instead of bridge mode? For me also bridgemode was not working with airtel, but strangely it is working with route mode in ONT(VLAN tagged in ONT) and ppoe in my router(mesh router).

In any case, I also went back to the Nokia ont, as I couldn't make the voice line to work.
 
@bigbyte.me As I mentioned over the chat, the exact dumb mode configuration works for me with the exact same ONT. The ONT did register with your ISP OLT, you were able to establish PPPoE from the router, and also in bridge mode from your router (after adding a bridge WAN profile). So I wouldn't say the device itself is defective, I would have gladly taken the device back if device didn't work at all.

Even without VLAN tagged mode, most routers support the configuration to have an alias interface (so that you can access the ONT management UI) including TP-Link, OpenWRT, Pfsense etc, it is only an issue for Tomato firmware.

@smnrock Regarding the voice, I have never tried configuring Airtel voice, so it might need some trial and error. I can confirm it works fine for BSNL voice, confirmed by multiple users.
 
@varkey, I tried everything I could by looking at the existing config from Nokia one and also from internet. Basically settings are nothing but configuring SIP server details, outgoing proxy, username/password and also static ip for voice profile(VLAN 660/4). Additionally defined static route for this voice profile. But nothing was working.

My understanding is that, it could be MAC restriction/binding from airtel server side.

Nevertheless, i will keep the device with me and continue to experiment whenever possible :)
 
varkey said:
@bigbyte.me As I mentioned over the chat, the exact dumb mode configuration works for me with the exact same ONT. The ONT did register with your ISP OLT, you were able to establish PPPoE from the router, and also in bridge mode from your router (after adding a bridge WAN profile). So I wouldn't say the device itself is defective, I would have gladly taken the device back if device didn't work at all.

Even without VLAN tagged mode, most routers support the configuration to have an alias interface (so that you can access the ONT management UI) including TP-Link, OpenWRT, Pfsense etc, it is only an issue for Tomato firmware.

@smnrock Regarding the voice, I have never tried configuring Airtel voice, so it might need some trial and error. I can confirm it works fine for BSNL voice, confirmed by multiple users.
Click to expand...

@varkey , I never said that the ONT is defective. I said it is not useful for me as, (1) It didn't work for me in dumb mode as told by you, (2) I can't make a PPPOE connection from router in VLAN tagged mode and (3) Outgoing calls on VoIP doesn't works (isp MTNL).

So due to all these issues, the device is not useful for me. Yes it worked for internet in certain configuration but those are not my use case and it certainly didn't work for anything in dumb mode.

And though it's not my use case, but if I am unable to make tagged vlan connections from router in bridge mode, I can't have internet and voip both working in bridge mode on through same wan port. This implies I can't use zoiper etc on my phone. This will be true with any firmware including Open-wrt.

When we purchase a device we expect it work in our intended use case and not a compromise. This can happen with other forum members as well and hence I posted here so that others can make a informed decision.
 
bigbyte.me said:
I can't make a PPPOE connection from router in VLAN tagged mode
Click to expand...
May I ask which router/OS you're using?

@bigbyte.me

Got it, just saw your comment above.

Recent OpenWrt snapshot builds require additional iptables kmod packages to get dual pppoe connections working, that include pppoe over tagged vlan as well as macvlan interfaces.
 
Recent OpenWrt snapshot builds require additional iptables kmod packages to get dual pppoe connections working, that include pppoe over tagged vlan as well as macvlan interfaces.
Click to expand...

I tried with a stable release of Open-wrt not snapshot. Also with Tomato.

In both cases, even with single WAN, pppoe over tagged vlan failed for me on this ONT.
 
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