Re: Multi-Networking in Linux - Multiple Subnets

On 8/1/26 21:48, Carlos E. R. wrote:
> On 2026-08-02 01:43, Lawrence D’Oliveiro wrote:
>> On Sat, 1 Aug 2026 14:11:18 +0200, Carlos E. R. wrote:
>>
>>> I got it from an internet search:
>>
>> Do “internet searches” not turn up Wikipedia any more?
>>
>> <https://en.wikipedia.org/wiki/List_of_reserved_IP_addresses>
> 
> I got it from the horse mouth, too:
> 
> https://datatracker.ietf.org/doc/html/rfc1918
> 
> 3. Private Address Space
> 
>     The Internet Assigned Numbers Authority (IANA) has reserved the
>     following three blocks of the IP address space for private internets:
> 
>       10.0.0.0        -   10.255.255.255  (10/8 prefix)
>       172.16.0.0      -   172.31.255.255  (172.16/12 prefix)
>       192.168.0.0     -   192.168.255.255 (192.168/16 prefix)

   Ok ... everyone here is arguing TECHNICAL Defs.

   I originally posed a useful QUESTION related to
   what you do if you start to run out of /24
   addresses.

   I don't CARE what the technical defs are ... I was
   looking for a way AROUND them that wasn't TOO damned
   complex or involved hundreds/thousands of dollars
   worth of software/hardware routers with lots of
   very weird tweaks.

   Looking like there's NO SUCH THING as what I was
   asking about. The /24, decided LONG ago, is still
   The Law for the most part.

   Well, for small->medium biz ... lots and lots of
   net-connected boxes/devices/IOT-shit ... /24 may
   NOT be "good enough".

   Even my home system ... "things" are using up rather
   a lot of /24 - it's becoming difficult to organize.
   Functional, yea still, but 'organized' ???

   The ONLY, kinda evil, 'fix' is MULTIPLE ADAPTERS.
   You CAN easily set each to a different subnet and
   then directly access data from each subnet.

   This isn't very good.

   HAVE put more than one wifi dongle on the USB
   bus ... it's too much data, each drags down the
   other. Old desktops, you can buy CARDS ... but
   people don't use "big" boards as much anymore.
   For tablets/phones and most laps you're NOT gonna
   have multiple adapters.