You are right... but, using broadcast, the installer have to configure his laptop on the same subnet of board. Our goal is to give the possibility to have laptop (or, in the future, a tool) configured on fixed ip too (i.e. board fixed ip 192.168.0.1 - laptop ip 192.168.0.2) and the installer have only plug a cable... no network configuration is necessary. But the idea of broadcast could be additional!
Piero 2008/2/21, Frédéric BERNON <[EMAIL PROTECTED]>: > > >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* > *====================================* > 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 > > > > > > > > > -- > > View this message in context: > > http://www.nabble.com/Finding-assigned-IP-address-of-device-tp15596400p15598159.html > > Sent from the lwip-users mailing list archive at Nabble.com. > > > > > > > > > > _______________________________________________ > > lwip-users mailing list > > [email protected] > > http://lists.nongnu.org/mailman/listinfo/lwip-users > > > > > _______________________________________________ > lwip-users mailing list > [email protected] > http://lists.nongnu.org/mailman/listinfo/lwip-users > >
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