Re: Double connector for the same NIC (autoconfiguration+PPPOE)

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From: Steve Foster [SBS MVP] (steve.foster_at_picamar.co.uk)
Date: 07/16/04 

Date: Fri, 16 Jul 2004 15:13:00 -0700

mikeov wrote:

>
> Hi everybody,
>
> My configuration:
> The PC running SBS-2003-premium has 2 NICs:
> NIC 1: external - connects PPPOE to SBC-Yahoo (dynamic IP)
> NIC 2: internal - connects to a router for 192.168.0 subnet - which
> has 2 LAN-clients
>
> I do not understand why I have both a "PPP Adapter" and a "Ethernet
> Adapter Network Connection".
> I suppose the ISP is slow in providing SBS with an IP address and the
> consequence is that an IP address (169.254.X.X) is assigned
> automatically to the external interface, NIC1.
> But shouldn't the external interface IP address be corrected once the
> ISP provides a dynamicIP?

Not if they're supplying it using PPPoE. Only the PPPoE adapter gets an
IP.

The PPPoE rides on the Ethernet connection, but as a consequence,
there's no TCP/IP being done at the nic level.

> Is having both connectors (PPPOE and Ethernet Adapter Network) a bug?

No.

> Can this be corrected?

There's nothing to correct.

If you don't like it, the way to eliminate it would be to put a router
between the DSL modem and the external nic, and have that handle the
PPPoE, leaving the SBS to have a simple TCP/IP connection between it
and the router. 

-- 
Steve Foster [SBS MVP]
---------------------------------------
MVPs do not work for Microsoft. Please reply only to the newsgroups.

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