Re: Multi-Networking in Linux - Multiple Subnets

On 2026-07-30 18:43, Marc Haber wrote:
> "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.
>>
>> The ISP configures the router so that it is mandatory to use
>> 192.168.1.*, and they take a good chunk of it for their own usage. I
>> have no recourse but using this non standard network. I use 192.168.2
>> for dhcp assignments.
> 
> With a /16 Netmask, covering the entire 192.168 RFC 1918 range, as if
> we have plenty of IPv4 addresses?
> 
> Please, let me see that ISPs customer documentation. They do have it
> online, don't they? I'm familiar with that industry for nearly 30
> years and have never seen a setup like that. It sounds so brain-dead
> that my first idea was that you haven't understood.

There is no documentation. They keep it secret. What is known is by 
reverse engineering.

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