Re: One network card many rj45 sockets

[David Christensen <dpchrist@holgerdanske.com>]

On 2021-01-19 06:22, Dan Ritter wrote:
> mick crane wrote:
> > hello,
> > I see that you can get a single network card with 2, 3, 4 connections.
> > Can you happily make each one on a separate private address block ?
> > 10.0.0.0, 172.16.0.0, 192.168.0.0
>
> My firewall (yes, it runs Debian) has an Intel 4x 1gig ethernet
> card in it, as well as the 1 gig port on the motherboard. Each
> is completely independent, so I have:
>
> - one connection to the public Internet
> - one connection to my switched network of wifi access points
> - one connection to my general wired network switch
> - one connection to my remote power switch
> - and a free connection for the future.
>
> Each of these has one or more different IP addresses, including
> IPv6 on three ports, and packets are routed between them and
> blocked by the firewall.

On 2021-01-19 08:40, Dan Ritter wrote:
> [The remote power switch] can turn on and off a set of wall outlets,
> to which other computers are attached. In other words, if the firewall
> is running, I can power-cycle several other machines.


I assume your Wi-Fi, LAN, and remote power switch interfaces are on 
different network segments (?).


Do you have use-cases that require or benefit from this, or could you 
replace the 4-port NIC with a 1-port NIC connected to a switch connected 
to all of the inside devices (AP's, clients, servers, power gateway, etc.)?


David