On Mon, 14 Oct 2013 21:12:32 -0400
Jerry Stuckle <jstuc...@attglobal.net> wrote:


> Maybe where you are, but not in the world scheme of things.
> 
> A router is a specific box.  A (A)DSL modem may also contain a
> firewall, etc.  But most (A)DSL modems, cable modems, etc., only have
> one Ethernet port.  So people install routers in addition to the one
> which may or may not be in the (A)DSL modem.
> 
> Modems and routers are two entirely different things, with completely 
> different uses.  One box may contain both - but that does not mean
> all modems are routers (or vice versa).
> 
Hear, hear, Jerry! This is how I have always heard them referred to when
I worked as a network admin. A router is a router, and a "cable modem"
may or may not (usually not!) have any routing capability. It is really
a bridge connecting two networks, as I mentioned previously. It doesn't
do any modulating or demodulating. It simply allows the packets to go
from one network to the other.


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