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Groups > comp.os.linux.misc > #91412 > unrolled thread

Routers and Subnets

Started byc186282 <c186282@nnada.net>
First post2026-09-14 01:45 -0400
Last post2026-09-15 07:59 +0100
Articles 5 on this page of 25 — 11 participants

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  Routers and Subnets c186282 <c186282@nnada.net> - 2026-09-14 01:45 -0400
    Re: Routers and Subnets Andy Burns <usenet@andyburns.uk> - 2026-09-14 07:30 +0100
    Re: Routers and Subnets "Carlos E. R." <robin_listas@es.invalid> - 2026-09-14 09:40 +0200
    Re: Routers and Subnets The Natural Philosopher <tnp@invalid.invalid> - 2026-09-14 11:12 +0100
    Re: Routers and Subnets Rich <rich@example.invalid> - 2026-09-14 17:12 +0000
      Re: Routers and Subnets c186282 <c186282@nnada.net> - 2026-09-14 20:32 -0400
        Re: Routers and Subnets Rich <rich@example.invalid> - 2026-09-15 01:47 +0000
          Re: Routers and Subnets c186282 <c186282@nnada.net> - 2026-09-15 02:13 -0400
            Re: Routers and Subnets The Natural Philosopher <tnp@invalid.invalid> - 2026-09-15 07:59 +0100
          Re: Routers and Subnets c186282 <c186282@nnada.net> - 2026-09-15 03:36 -0400
            Re: Routers and Subnets Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-09-15 18:49 +0000
              Re: Routers and Subnets The Natural Philosopher <tnp@invalid.invalid> - 2026-09-16 01:04 +0100
                Re: Routers and Subnets Rich <rich@example.invalid> - 2026-09-16 02:54 +0000
                Re: Routers and Subnets "Carlos E. R." <robin_listas@es.invalid> - 2026-09-16 07:05 +0200
                  Re: Routers and Subnets The Natural Philosopher <tnp@invalid.invalid> - 2026-09-16 11:34 +0100
              Re: Routers and Subnets c186282 <c186282@nnada.net> - 2026-09-16 00:50 -0400
          Re: Routers and Subnets Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-15 10:21 +0100
            Re: Routers and Subnets John Bokma <contact@johnbokma.com> - 2026-09-15 11:28 +0200
          Re: Routers and Subnets Lars Poulsen <lars@beagle-ears.com> - 2026-09-15 05:29 -0700
            Re: Routers and Subnets Anssi Saari <anssi.saari@usenet.mail.kapsi.fi> - 2026-09-15 20:16 +0300
            Re: Routers and Subnets Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-09-15 23:45 +0000
          Re: Routers and Subnets "Carlos E. R." <robin_listas@es.invalid> - 2026-09-15 20:34 +0200
            Re: Routers and Subnets c186282 <c186282@nnada.net> - 2026-09-16 00:48 -0400
              Re: Routers and Subnets "Carlos E. R." <robin_listas@es.invalid> - 2026-09-16 07:10 +0200
        Re: Routers and Subnets The Natural Philosopher <tnp@invalid.invalid> - 2026-09-15 07:59 +0100

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#91508

FromLawrence D’Oliveiro <ldo@nz.invalid>
Date2026-09-15 23:45 +0000
Message-ID<118clb9$2skr3$7@dont-email.me>
In reply to#91475
On Tue, 15 Sep 2026 05:29:07 -0700, Lars Poulsen wrote:

> This is why I HATE the "simple" solution of combining the
> DSL/cable/fiber modem, the edge router and the WiFi access point
> into a single box.

Here in NZ, there isn’t just a technical demarcation between the two,
but a legal regulatory one as well. The company that manages the
layer-1 and layer-2 (Tuatahi Fibre) provides the termination for the
fibre connection in a box (“ONT”), attached to your house, in my case
with 4 Ethernet ports and 2 landline phone ports on it. This company
is not an ISP or a phone provider.

So you sign up with your choice of ISP/phone provider, they connect to
the fibre network at their end, and Tuatahi livens the link directly
between them and you. The ISP might or might not provide you with a
router box, or you just go into a shop and buy your own (as I did).
You plug that in to the specified port on the ONT, configure it (if
necessary) as the ISP specifies, and you’re in business.

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#91495

From"Carlos E. R." <robin_listas@es.invalid>
Date2026-09-15 20:34 +0200
Message-ID<ngthctF8ehsU2@mid.individual.net>
In reply to#91455
On 2026-09-15 03:47, Rich wrote:
> c186282 <c186282@nnada.net> wrote:
>> On 9/14/26 13:12, Rich wrote:
>>> c186282 <c186282@nnada.net> wrote:
>>>> Breeched this subject a while ago - NOW it's becoming more relevant
>>>> for me.
>>>>
>>>> My router is currently set for 255.255.255.0, ie /24
>>>>
>>>> What I'm likely to NEED is /23 ...  which will encompass 0.x AND 1.x
>>>>
>>>> NOT sure my router can deal with it, but it SEEMS the, technically,
>>>> correct solution.
>>>
>>> Why don't you try and see?
>>
>>    Did.  Can't.  You can set the IPV4 address to anything you want but
>>    the subnet box only lets you set the LAST digit.
> 
> Presumably you meant "last octet" because last digit is not quite right
> here.
> 
> So it has a box 255.255.255.___ and you can only enter something in
> ___.  Yeah, you are stuck at most with a /24 with that.  So your option
> now would appear to be to obtain a router that will give you more
> flexibility in how you configure it.

Sometimes the web interface will not allow it, but the telnet or ssh 
interface does.


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

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#91535

Fromc186282 <c186282@nnada.net>
Date2026-09-16 00:48 -0400
Message-ID<3qidnbDIOdv_gjf3nZ2dnZfqn_WdnZ2d@giganews.com>
In reply to#91495
On 9/15/26 14:34, Carlos E. R. wrote:
> On 2026-09-15 03:47, Rich wrote:
>> c186282 <c186282@nnada.net> wrote:
>>> On 9/14/26 13:12, Rich wrote:
>>>> c186282 <c186282@nnada.net> wrote:
>>>>> Breeched this subject a while ago - NOW it's becoming more relevant
>>>>> for me.
>>>>>
>>>>> My router is currently set for 255.255.255.0, ie /24
>>>>>
>>>>> What I'm likely to NEED is /23 ...  which will encompass 0.x AND 1.x
>>>>>
>>>>> NOT sure my router can deal with it, but it SEEMS the, technically,
>>>>> correct solution.
>>>>
>>>> Why don't you try and see?
>>>
>>>    Did.  Can't.  You can set the IPV4 address to anything you want but
>>>    the subnet box only lets you set the LAST digit.
>>
>> Presumably you meant "last octet" because last digit is not quite right
>> here.
>>
>> So it has a box 255.255.255.___ and you can only enter something in
>> ___.  Yeah, you are stuck at most with a /24 with that.  So your option
>> now would appear to be to obtain a router that will give you more
>> flexibility in how you configure it.
> 
> Sometimes the web interface will not allow it, but the telnet or ssh 
> interface does.

   This is a providers box, 5G, probably a SIM card
   or equivalent buried down in there somewhere. In
   short there are no alternatives. Not like the good
   old days of dial-up and DSL.

   Did get in the replacement for my failing landline.
   Basically a big cell phone, but with a bunch of
   neat-o plugs on the back. Stuff in the manual
   can't go a paragraph without a support phone number
   and some "application portal" I'm unaware of so far.

   So, gonna have the tech come and set it up. Managed
   to get the 5G router going myself, but this thing
   is even more confusing. Plus, can plug my old phone
   set into it - has a good CID display/history - and
   ought to be able to put my old answer device in-line.

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#91538

From"Carlos E. R." <robin_listas@es.invalid>
Date2026-09-16 07:10 +0200
Message-ID<ngumlnF9b65U4@mid.individual.net>
In reply to#91535
On 2026-09-16 06:48, c186282 wrote:
> On 9/15/26 14:34, Carlos E. R. wrote:
>> On 2026-09-15 03:47, Rich wrote:
>>> c186282 <c186282@nnada.net> wrote:
>>>> On 9/14/26 13:12, Rich wrote:
>>>>> c186282 <c186282@nnada.net> wrote:
>>>>>> Breeched this subject a while ago - NOW it's becoming more relevant
>>>>>> for me.
>>>>>>
>>>>>> My router is currently set for 255.255.255.0, ie /24
>>>>>>
>>>>>> What I'm likely to NEED is /23 ...  which will encompass 0.x AND 1.x
>>>>>>
>>>>>> NOT sure my router can deal with it, but it SEEMS the, technically,
>>>>>> correct solution.
>>>>>
>>>>> Why don't you try and see?
>>>>
>>>>    Did.  Can't.  You can set the IPV4 address to anything you want but
>>>>    the subnet box only lets you set the LAST digit.
>>>
>>> Presumably you meant "last octet" because last digit is not quite right
>>> here.
>>>
>>> So it has a box 255.255.255.___ and you can only enter something in
>>> ___.  Yeah, you are stuck at most with a /24 with that.  So your option
>>> now would appear to be to obtain a router that will give you more
>>> flexibility in how you configure it.
>>
>> Sometimes the web interface will not allow it, but the telnet or ssh 
>> interface does.
> 
>    This is a providers box,

Mine to. Fibre in my case. The problem is that the ssh interface is not 
documented, and the help command has been removed. I have the help file 
from a previous model instead.

> 5G, probably a SIM card
>    or equivalent buried down in there somewhere. In
>    short there are no alternatives. Not like the good
>    old days of dial-up and DSL.
> 
>    Did get in the replacement for my failing landline.
>    Basically a big cell phone, but with a bunch of
>    neat-o plugs on the back. Stuff in the manual
>    can't go a paragraph without a support phone number
>    and some "application portal" I'm unaware of so far.
> 
>    So, gonna have the tech come and set it up. Managed
>    to get the 5G router going myself, but this thing
>    is even more confusing. Plus, can plug my old phone
>    set into it - has a good CID display/history - and
>    ought to be able to put my old answer device in-line.
> 

Yes, the phone is also plugged to my router.

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

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#91465

FromThe Natural Philosopher <tnp@invalid.invalid>
Date2026-09-15 07:59 +0100
Message-ID<118aqbm$26p9k$7@dont-email.me>
In reply to#91450
On 15/09/2026 01:32, c186282 wrote:
> On 9/14/26 13:12, Rich wrote:
>> c186282 <c186282@nnada.net> wrote:
>>> Breeched this subject a while ago - NOW it's becoming more relevant
>>> for me.
>>>
>>> My router is currently set for 255.255.255.0, ie /24
>>>
>>> What I'm likely to NEED is /23 ...  which will encompass 0.x AND 1.x
>>>
>>> NOT sure my router can deal with it, but it SEEMS the, technically,
>>> correct solution.
>>
>> Why don't you try and see?
> 
>    Did. Can't. You can set the IPV4 address to
>    anything you want but the subnet box only lets
>    you set the LAST digit.
> 
Well ignore the box and set it somewhere else

>>> Modern net shit almost always defaults to either .0.0 or .1.0
>>
>> Yes, but that only matters if it *also* does not let you set a
>> different netmask.  If it does let you set a different netmask, then
>> reconfigure it for the larger subnet and move on to the next device.
>>
>>> The prob is that this is pretty much 50/50.  Anything outside the
>>> small subnet and you can't SEE it.
>>
>> That's the entire point of "subnets".
> 
>    IF you can use 'em the way you need.
> 
> 
> 

-- 
No Apple devices were knowingly used in the preparation of this post.

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