Groups > comp.arch.embedded > #32016

Re: Configure network of an embedded device

From	pozz <pozzugno@gmail.com>
Newsgroups	comp.arch.embedded
Subject	Re: Configure network of an embedded device
Date	2023-09-08 09:41 +0200
Organization	A noiseless patient Spider
Message-ID	<udej73$3ca6u$2@dont-email.me> (permalink)
References	<ud6pcn$1sdej$1@dont-email.me> <udd2v6$32qve$1@dont-email.me>

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Il 07/09/2023 19:57, Don Y ha scritto:
> On 9/5/2023 1:37 AM, pozz wrote:
>> Is it a proprietary solution that uses only Ethernet frames (MAC 
>> addresses) and not IP packets? Is it a well known protocol that I 
>> don't know?
> 
> RARP gave way to BOOTP which gave way to DHCP for exactly this reason.
> 
> They all run *below* the IP layer so can be implemented (client-side)
> relatively easily.  Assigning IP, hostname, gateway, nameserver,
> timeserver, boot server, boot image, etc. are all done, there.

Ok, but you can't set a static IP address through DHCP and you are 
forced to have an always on DHCP server on the LAN (maybe you don't want 
to have one for some reason).

If I wanted to have only static IP addresses on my LAN, I would be 
forced to change the IP configuration on each device, through 
proprietary mechanisms (display, web app, ...). And if you have 50 hosts 
(IPCams?), it is a waste of time.

Anyway I think Dahua (and maybe other IPCams manufacturers) doesn't use 
DHCP to auto-configure IPCams connected to its NVRs. IPCam usually 
starts by default with a unique static IP address (192.168.1.108).

If you have only one IPCam in the LAN, it's very simple for the user as 
pointing the browser to:

   http://192.168.1.108.

If you have multiple IPCams, connect them to modern NVRs from the same 
manufacturer and point the browser to the NVRs IP address. Through the 
web interface of the NVR, the user can see all the IPCams (even if they 
have the same IP address) and change their network configuration (DHCP 
or static IP) one-by-one or all together (assigning a range of IP 
address sequentially).

Even if you don't have NVR, you can use Dahua Config Tool software. It 
is able to discover and set network configuration of IPCams on the 
LAN[1]. How are they able to do this?

I suspect this isn't standard because someone said this works only if 
NVR and IPCams are from the same manufacturer. Even Config Tool software 
can discover IPCams only if they are Dahua.

I think this method is very simple for the user.

> (You can operate an ethernet without IP at all!)
> 
> The problem is:
> - having a suitable server present on the network
>    (not all will have this -- though most SOHOs will)
> - conveying the parameters that were assigned by
>    the service to the *human* user (without requiring
>    special knowledge of a special tool which would
>    require more knowledge of the user's operating
>    environment *or* having a UI on the device)
> 

[1] https://www.youtube.com/watch?v=NIiI1BIHfms

Thread

Configure network of an embedded device pozz <pozzugno@gmail.com> - 2023-09-05 10:37 +0200
  Re: Configure network of an embedded device Dimiter_Popoff <dp@tgi-sci.com> - 2023-09-05 13:43 +0300
    Re: Configure network of an embedded device Don Y <blockedofcourse@foo.invalid> - 2023-09-07 11:03 -0700
  Re: Configure network of an embedded device Theo <theom+news@chiark.greenend.org.uk> - 2023-09-06 21:56 +0100
    Re: Configure network of an embedded device pozz <pozzugno@gmail.com> - 2023-09-07 09:54 +0200
      Re: Configure network of an embedded device Theo <theom+news@chiark.greenend.org.uk> - 2023-09-07 19:40 +0100
        Re: Configure network of an embedded device Don Y <blockedofcourse@foo.invalid> - 2023-09-07 13:19 -0700
        Re: Configure network of an embedded device Don Y <blockedofcourse@foo.invalid> - 2023-09-07 13:30 -0700
          Re: Configure network of an embedded device Dimiter_Popoff <dp@tgi-sci.com> - 2023-09-08 00:14 +0300
            Re: Configure network of an embedded device Don Y <blockedofcourse@foo.invalid> - 2023-09-07 14:31 -0700
              Re: Configure network of an embedded device Don Y <blockedofcourse@foo.invalid> - 2023-09-07 14:34 -0700
              Re: Configure network of an embedded device Dimiter_Popoff <dp@tgi-sci.com> - 2023-09-08 00:53 +0300
                Re: Configure network of an embedded device Don Y <blockedofcourse@foo.invalid> - 2023-09-07 15:21 -0700
                Re: Configure network of an embedded device Dimiter_Popoff <dp@tgi-sci.com> - 2023-09-08 02:05 +0300
                Re: Configure network of an embedded device Don Y <blockedofcourse@foo.invalid> - 2023-09-07 16:55 -0700
                Re: Configure network of an embedded device Dimiter_Popoff <dp@tgi-sci.com> - 2023-09-08 04:26 +0300
                Re: Configure network of an embedded device Don Y <blockedofcourse@foo.invalid> - 2023-09-07 18:57 -0700
          Re: Configure network of an embedded device Theo <theom+news@chiark.greenend.org.uk> - 2023-09-08 10:17 +0100
            Re: Configure network of an embedded device Don Y <blockedofcourse@foo.invalid> - 2023-09-08 03:20 -0700
  Re: Configure network of an embedded device Don Y <blockedofcourse@foo.invalid> - 2023-09-07 10:57 -0700
    Re: Configure network of an embedded device pozz <pozzugno@gmail.com> - 2023-09-08 09:41 +0200
      Re: Configure network of an embedded device Don Y <blockedofcourse@foo.invalid> - 2023-09-08 03:50 -0700
        Re: Configure network of an embedded device pozz <pozzugno@gmail.com> - 2023-09-08 13:56 +0200
          Re: Configure network of an embedded device Don Y <blockedofcourse@foo.invalid> - 2023-09-08 09:45 -0700
            Re: Configure network of an embedded device George Neuner <gneuner2@comcast.net> - 2023-09-08 16:50 -0400

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