How routers manage to login web with blanket username/password ?

  1. Posts : 31
    windows 10 pro

    How routers manage to login web with blanket username/password ?

    During the setup of a router recently purchased to replace my old faulty one , I stumbled on my own misconception.
    The manufacturer's instruction was to chose PPPoE menu on the Internet connection type , which prompted fields to type username and password.
    It was recommended for my DSL provider to type "[email protected]" in the username field and "client" as password.
    I gave it a try and surprisingly got a connection (lan of my desktop).
    A couple of years ago as I configured my old router , I thought that I should type into the equivalent fields of the TP-LINK interface , my DSL authentication email and respective password. On that time I did it and it worked.
    I thought that the router employed such info to dial through the modem and to log in the server of my provider.
    Then on the new router interface I typed my authentication email and password , it worked as I expected it would.
    Minutes ago , I discovered that I had mistyped the password : I missed one letter and even so I got the connection (and not an error message ). That means anyone who has a DSL modem and a router can use my phone line and to log in.
    The same does not happen If I plug the modem direct to the LAN port of the desktop , in this case the authentication info is required.
    How the router manages to dial without the correct authentication info or with a generic username/password ?
      My Computer

  2. Posts : 8,692
    Mac OS Catalina

    The newer Gateway's do not need a username and password. The Headend ATM knows what account the Serial number and MAC belong to. It is a always on connection with the newer gateways also.
      My Computer


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