PPPoE Client Unreachable

Hi,

I have a CCR1016-12G working as a PPPoE Server. Some customers are claiming that do not have access to Internet.

Then I made the following test:

  • ping-ed the IP of my customer and tried to access his router; the ping was successful, but the customer router did not reply;

  • I let the cmd ping-ing my customer client router WAN address x.x.43.192 that my PPPoE Server gave to it;

  • After that, I removed the current session of the client, but the IP continued replying;

  • I put the IP of the client in winbox, and my PPPoE Server show up;

Then, I noticed that my PPPoE server was not forwarding the communication to the customer router, but instead, working as a proxy =/

Is this a bug of 6.19 version?

The attached file has details of the problem.
pppoe error.png