Bill Auerbach wrote: > Mason wrote: > >> Maybe we could detect the problem there, and set the interface down? >> Then the netif_status callback would be called, and the user could >> decide to use a different address? >> >> What is the best strategy here to be notified of a "wrong" choice >> for a static address (address already in use). >> >> In the general case, does lwip try to detect when other systems >> are using the same IP address? > > You could enable AutoIp which does resolve conflicts.
IMO, autoIP is the answer to a different question. Namely, one wants automatic configuration, but without a DHCP server. In my case, there's a pre-existing network, and all I want is to detect a misconfiguration (human error) to be able to warn the user that the address he chose is already in use. lwip does send a "gratuitous ARP" when the netif is set up, which allows desktop OS such as Windows to warn of an address conflict, but I was hoping to have the same kind of pop-up warning on the set-top box. -- Regards. _______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users
