Re: Multi-Networking in Linux - Multiple Subnets

Marc Haber <[email protected]> Fri, 31 Jul 2026 15:07:02 +0200
Newsgroups comp.os.linux.misc
Organization private site, see http://www.zugschlus.de/ for details
Message-ID <[email protected]>
"Carlos E. R." <[email protected]> wrote:
>On 2026-07-30 13:42, Marc Haber wrote:
>> "Carlos E. R." <[email protected]> wrote:
>>> eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
>>>          inet 192.168.2.9  netmask 255.255.0.0  broadcast 192.168.255.255
>> 
>> Using the entire 192.168.0.0/16 range for a single home network is a
>> sure sign of a person not knowing too much about networking or an
>> incompetent ISP.
>> 
>>> Works for me as above :-)
>> 
>> Until the moment you'd want to connect to another network.
>
>
>
>LOL. I asked just now ChatGPT for the ranges, and it said:
>
>| Private range                     | CIDR notation    | Number of addresses | Common use                                      |
>| --------------------------------- | ---------------- | ------------------: | ----------------------------------------------- |
>| **10.0.0.0 – 10.255.255.255**     | `10.0.0.0/8`     |          16,777,216 | Large enterprise networks, cloud infrastructure |
>| **172.16.0.0 – 172.31.255.255**   | `172.16.0.0/12`  |           1,048,576 | Medium to large private networks                |
>| **192.168.0.0 – 192.168.255.255** | `192.168.0.0/16` |              65,536 | Home routers and small office networks          |
>
>Notice the last line... :-D

Yes, we all know that you didn't understand things yet.

Greetings
Marc
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