Kind of, yes. The
router would act as PPPoE client. The server is in BSNL. The client has to authenticate with server in order to establish connection to internet. The server sends a public IP once the authentication is successful.
D-Link 2750u would act only as a modem.
I haven't got a chance to try ipv6, as BSNL still uses only ipv4.
@varkey explained it much better than what I'd have explained myself.
Anyway, I am basically a village guy. With the reduction in tariff in BSNL, I wanted to have two BSNL connections. One at home and another at my wife's place where I visit often these days. I don't want to take my whole PC setup when I visit the other village. Also, I want the other PC to get connected whenever I am at home, so that I can make use of computers and devices at both villages.
This kind of setup has been working well already between my home and my work place (which is far from my home). So, I've sent disconnection request at work. I was using Airtel at work. I can use wake-on-lan whenever I start my day and the work PC has auto-shutdown script to shut it off, if I forget to do so manually. I can control my connected devices too (a
raspberry pi, a camera, etc) when I have
VPN working. Without bridge mode, VPN is pain to setup. Wake-on-lan, VPN, email notifications, etc, all can be done using
Mikrotik router that needs a NAT-free direct connection to internet in order to work without bugs.