Re: Docsis 3.1 modem

Robert Baer wrote:

> * My now useless Technicolor TC8405C has it all, it is Docsis 3.0 - so 
> would that do for that WiFi scheme?  Cost $0.00
>   Do not care about speed, to support my "smart' phone only.

     New-modem --------- Old-modem
             Eth       Eth
            LAN port   Lan port

As long as the two modems have GbE Ethernet, they have MDI/MDIX
for ethernet wiring, and whether the cable used is straight thru
or rolled, it should work. GbE ports remove the uncertainty about
cable type. It's the 100BT that usually require pissing around
with cables until you get the right one in there.

You're supposed to be able to connect from switch to switch.

Logically speaking, this config

     WAN LAN LAN LAN LAN

is actually a five port switch, where the port labeled
"WAN" is just rolled with respect to the wiring plan of
the LAN ports. That's so the WAN port can be connected
with a straight thru cable, to the upstream modem.

If you have this only (as the technicolor 8305C does)...

     LAN LAN LAN LAN

you are supposed to be able to use a LAN port in the same way.

I would expect the 8305C would work better if the configuration
interface was told not to expect a cable signal on the cable
connector. The 8305C can then provide telephone, more wired ports,
and the Wifi should work. That's because the 8305C would still be
a router, and be routing between the Wifi module and the switch
ports labeled "LAN".

I've never tried anything like that here, so have no hands
on with that method.

    Paul