RE : [lwip-users] Finding assigned IP address of device

[Frédéric BERNON]

>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
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Email : address@hiddenr
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====================================

P Avant d'imprimer, penser à l'environnement

 

-----Message d'origine-----
De : address@hidden [mailto:address@hidden 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. <address@hidden>:

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
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/lwip-users
>


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