MTNL uses dynamic public IP. No-IP and DDNS is used to update the IP Address corresponding to the domain whenever the ISP changes it.
However, with Carrier Grade NAT, services such as webservers cannot be accessed from WAN directly as the public IP is shared by many customers.
ZeroTier allows you to join a ZeroTier network and get a IP which can be accessed from other devices connected to the ZeroTier network. ZeroTier can punch through Carrier Grade NAT and establish direct connections between two devices without having to relay data through another server (though initially it does relay data for some time before connection is established).
Check this thread:
However, with Carrier Grade NAT, services such as webservers cannot be accessed from WAN directly as the public IP is shared by many customers.
ZeroTier allows you to join a ZeroTier network and get a IP which can be accessed from other devices connected to the ZeroTier network. ZeroTier can punch through Carrier Grade NAT and establish direct connections between two devices without having to relay data through another server (though initially it does relay data for some time before connection is established).
The State of NAT Traversal – ZeroTier
www.zerotier.com
Check this thread:
How to bypass Excitel (or any other isp) firewall and NAT | Excitel Broadband
For nearly a year, I have been trying to find a way to punch through excitel's firewall to make my LAN accessible through WAN. As Excitel uses carrier grade NAT to provide its services, we weren't able to access our home servers, cameras etc . Recently, I found a software called ZeroTier One...
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