>So the maintenance engineer can use a cross cable and a laptop or can connect >a laptop on the same hub of board (to avoid routers drops packet outside the >familiy address) So, in such configuration (a "direct" link), any broadcast detection protocol seems better than implementing a double netif on the same phy interface. Right? ==================================== Frédéric BERNON HYMATOM SA Chef de projet informatique Microsoft Certified Professional Tél. : +33 (0)4-67-87-61-10 Fax. : +33 (0)4-67-70-85-44 Email : [EMAIL PROTECTED] Web Site : http://www.hymatom.fr <http://www.hymatom.fr/> ==================================== P Avant d'imprimer, penser à l'environnement
-----Message d'origine-----
De : [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] De la part de Piero 74
Envoyé : jeudi 21 février 2008 09:20
À : Mailing list for lwIP users
Objet : Re: [lwip-users] Finding assigned IP address of device
In a lot of network, administrator configure router for dropping
broadcast packet and allows only multicast!
For our customer needs, i decided to implement on my board (without
user interface) the possibility to work with double netif on same phy
interface: one using dhcp, and one using fixed IP in different family address
configured in DHCP server (i.e. LAN uses 10.51.yy.xx and fixed IP is
192.168.0.1).
In this way, board could work as client using its dynamic ip, and act
as server on fixed ip for maintenance reasons. So the maintenance engineer can
use a cross cable and a laptop or can connect a laptop on the same hub of board
(to avoid routers drops packet outside the familiy address)
We discussed about my idea here:
http://lists.gnu.org/archive/html/lwip-devel/2008-02/msg00035.html
Piero
2008/2/20, Art R. <[EMAIL PROTECTED]>:
A simple but good way is to have the device do a UDP broadcast
of whatever
you want know. It does mean that the PC would need software
running on it to
receive the bcast and do what you want done.
Bill Auerbach wrote:
>
> Hello,
>
>
>
> This may be straying off topic. What methods can be used for
a node
> connected to my lwIP-based device to be able to find out the
IP address
> assigned by DHCP or AUTOIP? I don't have a display on the
device to know
> what the IP address is. How can I let the PC wanting to
connect to me
> know
> the assigned IP address?
>
>
>
> Thanks much!
>
>
>
> Bill
>
>
> _______________________________________________
> lwip-users mailing list
> [email protected]
> http://lists.nongnu.org/mailman/listinfo/lwip-users
>
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