[lwip-devel] [bug #29072] DHCPDISCOVER doesn't have ciaddr == 0

[Simon Goldschmidt]

Follow-up Comment #8, bug #29072 (project lwip):

Well, until now I didn't think that anyone would mix setting a static IP
address (netif_set_addr) with dhcp. And it looks like this combination leads
to a wrong behaviour, so maybe dhcp_start should set the netif's address to
zero.

I wouldn't let netif_set_addr influence dhcp: an application or port should
call dhcp_stop before switching to a static IP address (also, netif_set_addr
*is* used by dhcp for setting the received address).

As to 3.: How would we not break TCP connections when the local address
changes? Are you sure the RFC is talking about TCP there? Also, I didn't find
that part in the RFC, could you point me to the chapter?

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