Re: [lwip-users] Multiple IP addresses

[Paul]

Hi Leon,

Thanks for the answers. I have implemented option 2 and it looks like a 
winner.

Pau;



Leon Woestenberg wrote:

> 2) If you want something that works now, the easiest thing to do is 
> modify this piece of code in dhcp.c:
>
> ---
> static void dhcp_timeout(struct netif *netif)
> {
>   /* back-off period has passed, or server selection timed out */
>   if ((dhcp->state == DHCP_BACKING_OFF) ||
>       (dhcp->state == DHCP_SELECTING)) {
>     dhcp_discover(netif);
>   /* receiving the requested lease timed out */
>   } else if (dhcp->state == DHCP_REQUESTING) {
> ---
>
> into this:
>
> ---
> static void dhcp_timeout(struct netif *netif)
> {
>   if ((dhcp->state == DHCP_BACKING_OFF)
>   {
>     /* stop trying DHCP */
>     dhcp_stop(netif);
>     /* fallback */
>     ipconfig_fallback(netif);
>   } else if (dhcp->state == DHCP_SELECTING) {
>     if (dhcp->tries <= 2) {
>       dhcp_discover(netif);
>     } else {
>       /* stop trying DHCP */
>       dhcp_stop(netif);
>       /* fallback */
>       ipconfig_fallback(netif);
>     }
>   }
>
> In ipconfig_fallback() configure the network interface as you like.