Re: Multi-Networking in Linux - Multiple Subnets

Tauno Voipio <[email protected]> Sat, 1 Aug 2026 15:49:49 +0300
Newsgroups comp.os.linux.misc
Organization A noiseless patient Spider
Message-ID <[email protected]>
On 31.7.2026 14.51, Carlos E. R. 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
> 

Specifications for those address ranges are in RFC1918.

-- 

-TV