>From: "Fickling, Sam (Sam Fickling)" <sam.fickling@hp.com>
>I have a new Netgear WGR614 NAT Router/Firewall which
>I have attached to my Alcatel STP Modem.
>I wanted to put the modem into bridging mode and make
>the router dial, but I can't seem to make the router or any software
>do PPPoA dialing (as opposed to the built-in PPPoE).

What you are trying to do there is make the modem into a L2 protocol
converter.
The most common configurations are

    PPPoE <->PPPoA
    PPTP<->PPPoA

The modem talks PPPoA to Telecom's RAN and relays the PPP packets via a
different protocol on the inside, thus your NetGear could talk PPP to the
Ran via the STP.

As I remember it the STP supports PPTP (like a Home) - if the Netgear
support PPTP then the following should work.

    Netgear <-PPTP-> STP <--PPPoA--> RAN

>So I eventually had to put the Modem into DHCP spoofing mode and everything
seemed to work fine.

This is what I would call bridging, the STP emulates the RAN as an ethernet
router and bridges to the RAN via PPPoA. The inside nic of the STP will have
the same IP address as the PPP peer (the RAN), your machine is given the PPP
client IP address and you route via a default gateway.

>However, it seems that incoming connections are terminating
>on the modem and not the router so the current setup is not
>much use.

Your NetGear should have a real world IP address and all incoming
connections should come through unfiltered by the modem. Why do you say that
the connections are terminating on the modem?

Having said that, most of these DHCP spoofing implementations seem to be
full of bugs.

Cheers

BG.

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