It is not able to do the PPPoE. It is throwing an Error - Unable to establish a connection with the remote server. If my PC is able to do the PPPoE dial-up for the connection then there must be a way to do the same with Tenda router. Should I change the IP range in the Tenda router?
I don't know what is wrong here. Why is the Tenda not getting the PPPoE in a working state like the PC does? I have no clue. You will have to compare both in all details. Sometimes parameters are implicit and set to some value which is different for the PC and the Tenda.
The Tenda should have an IP address in the 10.11.12.xx range that it gets through the DHCP client on the
WAN interface of the Tenda. (Like your PC is getting an 10.11.12.xx address when it is connected directly to the SXT). But maybe no IP address is used . It is very important that the SXT is in transparant bridge mode. But as it works for the PC it should be OK. The IP range to the
LAN side and the Tenda DHCP server on the LAN should have no influence. As long as we don't have a PPPoE session, we have no connection.
The Tenda must find the PPPoE service. This uses a discover operation. (see Wikipedia:
https://en.wikipedia.org/wiki/Point-to- ... r_Ethernet )
The only thing as next step is checking the debug logs in Tenda and Mikrotik, and trying to understand how that PPPoE setup works, to find what can be different. (like name of the service)
From the wikipedia, with some renaming ....
PPPoE Discovery (PPPoED)
Although traditional PPP is a peer-to-peer protocol, PPPoE is inherently a client-server relationship since multiple hosts can connect to a service provider over a single physical connection.
The Discovery process consists of four steps between the host computer which acts as the client and the access concentrator at the Internet service provider's end acts as the server. They are outlined below. The fifth and last step is the way to close an existing session.
Client to server: Initiation (PADI)
PADI stands for PPPoE Active Discovery Initiation.
Communication over Ethernet is only possible via MAC addresses. As the computer does not know the MAC address of the ISP concentrator, it sends out a PADI packet via an Ethernet broadcast (MAC: ff:ff:ff:ff:ff:ff). This PADI packet contains the MAC address of the computer sending it.
The PADI packet can be received by more than one concentrator. Only ISP equipment that can serve the "Service-Name" tag should reply.
Server to client: Offer (PADO)
PADO stands for PPPoE Active Discovery Offer.
Once the user's computer or Tenda has sent the PADI packet, the ISP concentrator replies with a PADO packet, using the MAC address supplied in the PADI. The PADO packet contains the MAC address of the concentrator, its name and the name of the service.
Client to server: request (PADR)
PADR stands for PPPoE active discovery request.
A PADR packet is sent by the user's computer or Tenda to the concentrator following receipt of an acceptable PADO packet from the concentrator. It confirms acceptance of the offer of a PPPoE connection made by the concentrator issuing the PADO packet.
Server to client: session-confirmation (PADS)
PADS stands for PPPoE Active Discovery Session-confirmation.
The PADR packet above is confirmed by the concentrator with a PADS packet, and a Session ID is given out with it. The connection with the concentrator for that POP has now been fully established.
Either end to other end: termination (PADT)
PADT stands for PPPoE Active Discovery Termination. This packet terminates the connection to the POP. It may be sent either from the user's computer or from the concentrator.