On Monday 05 June 2023 at 20:30:19, Jim Jackson wrote:

> On Sun, 4 Jun 2023, o1bigtenor via Dng wrote:
> > Should I switch my present router from 192.168.1.1 to my chosen
> > 172.16.x.x (I'm running on dd-wrt)?
>
> Do you want your sensors (assumed ethernet connected) to use the router and
> be able to access / be accessed from the internet?
>
> If yes then do it.

Why do you recommend changing to 172.16.0.0/16 instead of using
192.168.0.0/16?

>     How are existing machines network configured?

>

>       If they are manually configured you will have give them numbers in
>       the new network range. If you let your router do DHCP, then you
>       should be ok.

>

>       How are the sensors network configured? If using DHCP, can your DHCP
>       server manage that numbers of DHCP clients? You may have to configure
>       your routers DHCP server to have a big enough range of addresses to
>       hand out.

I think that should be trivial compared to the requirements for switches
and/or wireless access points to handle this many devices & addresses.

> If no then it would be better to use the existing 192.168.1.0 network for
> those machines that need internet access, and use the bigger 172.16.x.x
> addresses for the sensors and the machine they talk to.

I don't see the advantage of over-complicating things in this way.

> You can run several networks on the same phyical LAN. You will have to put
> the machine the sensors talk to on this network as well. A linux network
> interface has have several addresses.

Given that the OP is almost completely new to networking, I think I would
avoid recommending such a setup from the outset unless it provides some very
strong advantages (which I personally don't see that it does).


Antony.

--
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majority of people genuinely believe they are not like the majority of people.

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