Re: Multi-Networking in Linux - Multiple Subnets

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

-- 
Cheers,
        Carlos E.R.
        ES🇪🇸, EU🇪🇺;