Firmwares for BSNL Bharat Fiber ONT/ONU/OLT

Can confirm VSOL fw's from 1.0.29 (the oldest I've used) has NAT options. It was added in an even earlier version afaik.
 
The version that is available on Digisol's website is V1.1.2-180828. It doesn't have NAT options. I was confused but went ahead with the flash anyway last night.
Ya, cache issue. Tried on different browser, the logo is back, lol.
 
On VSOL ONT's:

NAT Type 1 is Full Cone NAT.
NAT Type 2 is Restricted Cone NAT.
NAT Type 3 is Port Restricted Cone NAT.
NAT Type 4 is Symmetric Cone NAT.

You can use STUNNER app from play store to find these.

Don't ask me what these are btw, I just know full cone nat means everything is open at the router level. Any external IPs can open ports in devices on your network. Your PC already has it's own firewall rules, so it should be safe unless you have a rogue app installed.

The rest is too complicated for me to type, maybe check this: Types of NAT and How to determine the NAT Type this guy explains it well.
 
Huh that is new, if they're using dates as version code, these are from August. I'll check later.
 
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