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Using 2 dsl modems with 1 lan connection on Windons SBS 2003 r1
  1. #1


    Binderbin Guest

    Using 2 dsl modems with 1 lan connection on Windons SBS 2003 r1

    Greetins
    I have a customer that has a sbs server that used to send thier email
    traffic to 1 dsl modem and all internet traffic to another. When they moved
    to a new building this was changed back to 1 dsl modem . They now have use of
    another internet connection and would like it set back up .. The reason they
    are doing this is because they have a big project due and the building is
    letting them get on thier fiber provider back bone for a few days . I would
    of like all traffic to go the fiber but the provider does not have reverse
    dns and all out bound emails fail. so I would like to keep the email on the
    dsl and the internet traffic on the fiber



    Any help would be fantastic.
    Thank You
    David

      My System SpecsSystem Spec

  2. #2


    James Hurrell Guest

    Re: Using 2 dsl modems with 1 lan connection on Windons SBS 2003r1

    On 25/01/2010 16:35, Binderbin wrote:

    > Greetins
    > I have a customer that has a sbs server that used to send thier email
    > traffic to 1 dsl modem and all internet traffic to another. When they moved
    > to a new building this was changed back to 1 dsl modem . They now have use of
    > another internet connection and would like it set back up .. The reason they
    > are doing this is because they have a big project due and the building is
    > letting them get on thier fiber provider back bone for a few days . I would
    > of like all traffic to go the fiber but the provider does not have reverse
    > dns and all out bound emails fail. so I would like to keep the email on the
    > dsl and the internet traffic on the fiber
    >
    > Any help would be fantastic.
    > Thank You
    > David
    Why not use a dual port WAN router that could direct say all traffic
    from/to SBS box over WAN1 (existing connection) and all other in and
    outbound internet traffic (internal client workstations etc.) via WAN2
    (fibre).

    If you have ISA that might complicate matters somewhat...

    However, try searching for Load Balancing.

      My System SpecsSystem Spec

  3. #3


    Joe Guest

    Re: Using 2 dsl modems with 1 lan connection on Windons SBS 2003r1

    Binderbin wrote:

    > Greetins
    > I have a customer that has a sbs server that used to send thier email
    > traffic to 1 dsl modem and all internet traffic to another. When they moved
    > to a new building this was changed back to 1 dsl modem . They now have use of
    > another internet connection and would like it set back up .. The reason they
    > are doing this is because they have a big project due and the building is
    > letting them get on thier fiber provider back bone for a few days . I would
    > of like all traffic to go the fiber but the provider does not have reverse
    > dns and all out bound emails fail. so I would like to keep the email on the
    > dsl and the internet traffic on the fiber
    >
    Obviously, nobody there remembers how it was done before...

    The dual-WAN router is one way to go, it might be also worth checking
    with your current ISP account to see if there is use of a smarthost
    included. This would allow mail to be sent from an IP address from which
    mail would not be accepted directly. If not, depending on how important
    this issue is, they might consider renting a smarthost for a minimum period.

    --
    Joe

      My System SpecsSystem Spec

Using 2 dsl modems with 1 lan connection on Windons SBS 2003 r1 problems?

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