[lwip-users] Re: [lwip] Question about ip_input

[Leon Woestenberg]

Hello David,

> in ip_input:
> if(ip_addr_isany(&(netif->ip_addr)) ||
> Why is one of the criteria ip_addr_isany(&(netif->ip_addr))  ?
>
We must accept packets for the DHCP negotiation process for an unconfigured
interface.

However, the filter can be much more restrictive.

Also, the filter seems not to work for 2 unconfigured interfaces, as the
first one always
matches.

This filter must be rewritten. Let's first define in pseudo-code what it
should do.

Regards,

Leon.

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