Using NAT with PPPoE
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Thread: Using NAT with PPPoE

  1. #1
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    Post Using NAT with PPPoE

    This is a pretty technical question, but I hope someone can help me.

    OK, here is my situation:

    I have a Windows 2000 Server with 2 network cards (one for the internal network and one for the internet). I need this to act as a gateway using Network Address Translation. The problem is that I have Earthlink DSL which uses PPPoE to make its connection through the NIC that is connected to the DSL modem. When I got to set up NAT in Routing and Remote Access, it does not recognize the PPPoE connection as an interface (Im guessing because it is a virtual connection).
    Does anyone know if what I want to do is possible? I've set up NAT before when my external NIC was my actual internet connection (not PPPoE), and it was pretty easy.

    Thanks in advance.
    -Kory

  2. #2
    Registered User tha 4NiK8R's Avatar
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    Post

    I would recommend that you get a dsl router and NAT it at that point. DLS routers are cheap($75+) and most of them support PPoE

  3. #3
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    Post

    have you tried configuring the server with ICS instead of going through routing and remote access? Sometimes that works....Q273587 in technet has some information too that may help.

  4. #4
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    Post

    Thanks for the help guys. I'm not a big fan of ICS (it's really insecure and from a networking viewpoint its pretty crappy), but Weazel you are absolutley right that it would work that way.
    I wound up taking tha 4NiK8R's advice and getting a cheap Dlink firewall/router that supports PPPoE and throwing it between the server and the dsl modem. Then I set up NAT the way I wanted on the server and it works like a charm (I know I could have used NAT right through the router but I need the server to act as a sniffer).
    Thanks again for your input guys!

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