How does setting a static IP on a mobile device prevent linux router from assigning that IP address?

In article , Carlos E.R.
wrote:


Google "address reservation".
You don't want a fixed IP address on a phone.

Not true, he does.

he might think he does, but he doesn't.

On 2017-04-12 12:45, nospam wrote:
In article , Carlos E.R.
wrote:


Google "address reservation".
You don't want a fixed IP address on a phone.

Not true, he does.

he might think he does, but he doesn't.

Your opinion noted.


--
Cheers, Carlos.

In article , Chris Green
wrote:

Addresses 192.168.a.254 and 192.168.a.255 are *not* assignable, not by me,
not by the router, as they play a fixed role already, as does 192.168.a.0
.

254 is.

254 is often the default router IP, they're usually either 192.168.1.1
or (less often) 192.168.1.254 if using the 192.168.1 block.

depends on the router. it's easily changed to anything you want and it
doesn't need to be 192.168/16 either.

http://www.downloads.netgear.com/fil...s/1524_image00
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http://foxnetlab.com/images/images/2.../asus_rt-ac51u
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In article , Carlos E.R.
wrote:


Google "address reservation".
You don't want a fixed IP address on a phone.

Not true, he does.

he might think he does, but he doesn't.

Your opinion noted.

it's not an opinion. he should *not* have a fixed ip address on his
phone. that is only going to cause a world of problems, especially
since he doesn't understand what he's doing.

what he wants is a reserved address, which is done at the router.

On 2017-04-12, nospam wrote:
In article , Carlos E.R.
wrote:


Google "address reservation". You don't want a fixed IP address
on a phone.

Not true, he does.

he might think he does, but he doesn't.

Your opinion noted.

it's not an opinion. he should *not* have a fixed ip address on his
phone. that is only going to cause a world of problems, especially
since he doesn't understand what he's doing.

what he wants is a reserved address, which is done at the router.

Setting his phone to use a static IP while connected to his home
network, would be a good idea if (when) he sets his router to use a
static IP for that device. If he wants to connect to other networks
away from home he should set his phone to use DHCP with them if that's
what they expect (which it probably is, as a general rule).

--
-- ^^^^^^^^^^
-- Whiskers
-- ~~~~~~~~~~

Le 12/04/2017 à 14:14, Whiskers a écrit :

Setting his phone to use a static IP while connected to his home
network, would be a good idea if (when) he sets his router to use a
static IP for that device.

This does not make sense.
A static address for a device is set on the device, not on the router.

nospam wrote:
In article , Chris Green
wrote:

Addresses 192.168.a.254 and 192.168.a.255 are *not* assignable, not by me,
not by the router, as they play a fixed role already, as does 192.168.a.0
.

254 is.

254 is often the default router IP, they're usually either 192.168.1.1
or (less often) 192.168.1.254 if using the 192.168.1 block.

depends on the router. it's easily changed to anything you want and it
doesn't need to be 192.168/16 either.

I didn't say it wasn't easy to change, just that it is sometimes the
default router address. It can make things (a bit) difficult
sometimes if you change the router's address because if/when you have
to do a reset everything goes awry.

--
Chris Green
·

In article ,
Whiskers wrote:

Google "address reservation". You don't want a fixed IP address
on a phone.

Not true, he does.

he might think he does, but he doesn't.

Your opinion noted.

it's not an opinion. he should *not* have a fixed ip address on his
phone. that is only going to cause a world of problems, especially
since he doesn't understand what he's doing.

what he wants is a reserved address, which is done at the router.

Setting his phone to use a static IP while connected to his home
network, would be a good idea

it's a horrible idea because he'd have to change it every time he
leaves the house and back again when he returns.

that's a ****load of effort for absolutely no reason, since what he
claims to want can be done entirely automatically.

if (when) he sets his router to use a
static IP for that device.

there's nothing to set. the router doesn't care.

If he wants to connect to other networks
away from home he should set his phone to use DHCP with them if that's
what they expect (which it probably is, as a general rule).

he should set it to dhcp and leave it that way, particularly since he
doesn't understand what he's doing and is likely going to make things
worse.

if he wants a particular ip address while at home (which can be useful
at times although very rarely for a phone), reserve that ip address at
the router. that way, the phone will work everywhere without needing to
constantly modify the network settings for every location. there won't
be any conflicts either.

he hasn't said *why* he wants this, and quite likely, there's an even
easier solution.

On 4/12/2017 5:28 AM, Pascal Hambourg wrote:
Le 12/04/2017 à 14:14, Whiskers a écrit :

Setting his phone to use a static IP while connected to his home
network, would be a good idea if (when) he sets his router to use a
static IP for that device.

This does not make sense.
A static address for a device is set on the device, not on the router.

If the router reserves and always assigns the same predefined IP address
to the MAC address of the phone in DHCP mode (and never to any other
device), it's always the same...works exactly like a static address when
connected to that router.
And it's all done in the router.

While you're in there, program the access point to restrict connections
to only those MAC addresses you choose.
That won't keep the hackers out, but will provide a little inhibition
to your neighbors borrowing your internet connection.

You can surely construct a situation where the router
has its DHCP server disabled, but that's a contrived/rare case.
Anybody doing that won't have any trouble dealing with the issues
that causes with phones.

Le 12/04/2017 à 16:39, mike a écrit :
On 4/12/2017 5:28 AM, Pascal Hambourg wrote:
Le 12/04/2017 à 14:14, Whiskers a écrit :

Setting his phone to use a static IP while connected to his home
network, would be a good idea if (when) he sets his router to use a
static IP for that device.

This does not make sense.
A static address for a device is set on the device, not on the router.

If the router reserves and always assigns the same predefined IP address
to the MAC address of the phone in DHCP mode (and never to any other
device), it's always the same.

It is fixed but still dynamically assigned, not static.

On 4/12/2017 7:45 AM, Pascal Hambourg wrote:
Le 12/04/2017 à 16:39, mike a écrit :
On 4/12/2017 5:28 AM, Pascal Hambourg wrote:
Le 12/04/2017 à 14:14, Whiskers a écrit :

Setting his phone to use a static IP while connected to his home
network, would be a good idea if (when) he sets his router to use a
static IP for that device.

This does not make sense.
A static address for a device is set on the device, not on the router.

If the router reserves and always assigns the same predefined IP address
to the MAC address of the phone in DHCP mode (and never to any other
device), it's always the same.

It is fixed but still dynamically assigned, not static.

I referred to it as address reservation.
It's functionally equivalent to static IP when used with the
home router.

Consider the nit picked, even though it detracts from understanding.

nospam wrote:
[...]
he hasn't said *why* he wants this, and quite likely, there's an even
easier solution.

He *has* said why he wants/needs this - a fixed ip address on his
phone while at home -, but as usual you spout all kind of ********
without even knowing what the problem is. And yes, his want/need *is* a
legitimate one.

But to be fair, your machine gun approach *has* hit the target! Bummer
for you that you don't know what the target was4s, nor which bullet hit
it!

In article , Frank Slootweg
wrote:

he hasn't said *why* he wants this, and quite likely, there's an even
easier solution.

He *has* said why he wants/needs this - a fixed ip address on his
phone while at home

that's not a why.

he has not stated the problem he needs to solve and has demonstrated
that he knows very little about networking.

his *guess* is that a static ip is the solution without realizing all
the problems it will cause for both himself and others.

-, but as usual you spout all kind of ********
without even knowing what the problem is.

he never said what the problem is, so nobody, including you, has any
idea.

And yes, his want/need *is* a
legitimate one.

no it isn't.

there is no valid reason why a *phone* needs a static ip address.

On 2017-04-12, Pascal Hambourg wrote:
Le 12/04/2017 Ã* 14:14, Whiskers a écrit :

Setting his phone to use a static IP while connected to his home
network, would be a good idea if (when) he sets his router to use a
static IP for that device.

This does not make sense.
A static address for a device is set on the device, not on the router.

To work properly, it needs to be set on both.

--
-- ^^^^^^^^^^
-- Whiskers
-- ~~~~~~~~~~

Le 12/04/2017 Ã* 19:56, Whiskers a écrit :
On 2017-04-12, Pascal Hambourg wrote:
Le 12/04/2017 Ã* 14:14, Whiskers a écrit :

Setting his phone to use a static IP while connected to his home
network, would be a good idea if (when) he sets his router to use a
static IP for that device.

This does not make sense.
A static address for a device is set on the device, not on the router.

To work properly, it needs to be set on both.

As nospam pointed out, the router does not care that a device has a
static address. What kind of precise setting do you think would be
needed on the router ?