Ethereal-dev: Re: [ethereal-dev] IS IPX a Network layer protocol, or below the network layer,

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From: Guy Harris <gharris@xxxxxxxxxxxx>
Date: Mon, 21 Feb 2000 21:08:11 -0800
> I am having trouble visualizing and explaining where IPX sits in the DoD
> model or the OSI model.

I'd call it a network layer protocol, at the same place in the layer
cake as IP or OSI CLNP, for example.

> I have heard it said that IPX is not routable,

>From whom?  Perhaps they're thinking of NetBEUI Framing, or whatever the
NetBIOS-atop-802.2-Type-2 protocol is called; that isn't routable (host
addresses are MAC addresses), but IPX is routable.

> and assumed that this meant
> that IPX does not carry network/node addresses around in the IPX header.
> Is this correct?

Nope.  See

	http://www.protocols.com/pbook/novel.htm#IPX

IPX addresses consist of a network number and a MAC address.