NAT, uPnP, and bridging?

Discussion in 'Computing' started by 4000 psi, Oct 27, 2004.

  1. 4000 psi

    4000 psi Guest

    i have a NetComm NB3 ADSL modem/router (1 Ethernet, 1 USB ports) ... this
    particular model does not support uPnP needed for MSN Messenger's video
    conferencing ...

    if i were to connect in a D-Link router (with uPnP support) and have it
    authenticate my ADSL log-in as well as provide NAT services to my LAN whilst
    the NB3 is set to pure bridging mode (with NAT turned off) ... will this
    work with a typical ADSL connection and enable uPnP for all practical
    purposes?


    the set-up would be as follows:

    ISP <--> NB3 modem (in bridging-only mode) <--> D-Link router (NAT/uPnP,etc)
    <--> my_LAN

    am i understanding this correctly? will the NB3 allow the D-Link and my ISP
    to communicate directly for the purposes of logging into my ADSL service,
    obtaining an IP, etc., etc.

    is this how bridging works?

    many thanks!!!
     
    4000 psi, Oct 27, 2004
    #1
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  2. 4000 psi

    derek / nul Guest

    Which dlink router?
     
    derek / nul, Oct 27, 2004
    #2
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  3. 4000 psi

    4000 psi Guest

    i was looking at the di-624 superG

     
    4000 psi, Oct 27, 2004
    #3
  4. 4000 psi

    derek / nul Guest

    I don't think this setup will work as neither device will do the required pppoa
    while the nb3 is in bridge mode.

    I think you will need to get a dsl router with wireless like a billion 5100w
     
    derek / nul, Oct 27, 2004
    #4
  5. 4000 psi

    derek / nul Guest

    All isp's are moving away from pppoe, as pppoa has less overheads and less
    problems.

    Swift and Westnet use pppoa.

    Telescum use pppoa because they got the equipment first.
     
    derek / nul, Oct 27, 2004
    #5
  6. 4000 psi

    Black Adder Guest

    --
    ----------------------------------------------------------------------------
    ------------------------------------------------------------
    "It's all coming back to me now", said the blind man as he peed into the
    wind
    Most ISP's use PPPOE. Telstra uses PPPOA because they cannot handle PPPOE.
    (I read that somewhere). I had this misfortune to setup an IPCOP firewall
    which did not support PPPOA. So I used a dicky Alcatel Speed touch home to
    connect my PPPOA connection and used the IPCOP box to connect to the the
    modem via Static IP Address. I made my gateway 10.0.0.138.
     
    Black Adder, Oct 27, 2004
    #6
  7. WRONG.,

    What is required about "PPPoA" ????

    In fact, in bridge mode the Netcomm NB3 will be accept PPPoE packets off
    the ethernet and funnel them down ATM (the A in PPPoA), and send them the
    other way too.

    The Dlink would be in PPPoE mode, because you cant do PPPoA over the
    ethernet
    connection between the dlink and the NB3.
     
    Wearsya Bean Hiding, Oct 30, 2004
    #7
  8. "> Most ISP's use PPPOE. Telstra uses PPPOA because they cannot handle
    PPPOE.

    WRONG WRONG WRONG

    The allow both to be used.

    They would only have to use PPPoE, but PPPoA is more efficeint.



    Any problem you had is with the firmware in the box you were using.
     
    Wearsya Bean Hiding, Oct 30, 2004
    #8

  9. well thats true.

    but they also support PPPoE so that you can
    have a modem (or a modem/router/firewill set back to "bridge mode", where
    it acts as a plain modem .. ) .. driven by a PPPoE client like a PC or a
    broadband firewall/router without ADSL Modem......



    FALSE
    they allow PPPoA and PPPoE . They may provide a PPPoA example for
    configuring
    an ADSL modem/router/firewall.

    But they need to support PPPoE for the case of where the is an ADSL modem
    (not a combined modem/router/firewall) in use.

    wrong
     
    Wearsya Bean Hiding, Oct 30, 2004
    #9
  10. 4000 psi

    4000 psi Guest

    this is what i have done and completely eliminated the non-uPnP/NAT problems
    that i was having with MSN Messenger 6.2 ... modem as a bridge and the PC as
    the authenticator/router seems to work pretty well ...
     
    4000 psi, Oct 30, 2004
    #10
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