In today's episode of
Fun with Powerpoint in 30 Minutes or Less, I started with the
TWC Self-Install Instructions for Digital Phone, specifically Diagram C. I then grabbed Google Images of the other equipment to hack together some diagrams that approximate BC's home network that everyone has been discussing here for weeks.
Three diagrams are attached.
The first diagram is the type of connection that someone with TWC Digital Phone and a home VPN router (aka Hardware VPN) would have. You'll notice that the difference here from TWC Diagram C is that most people don't just connect a single computer to the Internet port on the cable modem. They connect a router allowing multiple devices to connect to the Internet.
The second diagram is, based on what I have heard and read, something very close to what BC would have had beginning in Jan/Feb 2008 and lasting until some unknown date. This was when he was using a Cisco VoIP small-business type setup for his home phone. One or more of the IP phones was supposedly wireless.
The last diagram is what would be needed to have seen this alleged/rumored Duplicate Address error in the event log on the Thinkpad. Note that, as I indicated on the diagram, all we would really know [if this error did in fact occur] is that the Thinkpad and the 3825 were on the same LAN. We don't necessarily know that the 3825 was connected to the TWC network. (My guess as to what Howie will argue is that it wasn't.)
Of course there are things that can be (and probably will be) quibbled with in the topologies. E.g., on the right side, the order could have been:
cable-modem <-> 871 <-> personal router
or
cable-modem <-> personal router <-> 871
I don't see such particulars as all that important in this case.
Discuss amongst yourselves.