Am 22.01.2019 um 09:58 schrieb [email protected]:
Could I get a recommendation for run-time configurable DHCP/Static IP
address. Sorry if this has been asked 100 times before. Just wondering
what the people who actually use lwip do…
From monitoring the mailing list, I understand no graceful shutdown… So
I am ok with a startup variable and reset the hardware to make the
setting take effect. #define is not really what I am looking for.
Is this the right way?
1. Start the stack
2. Check my config for desired static IP, or DHCP requested (dip
switch, config bit, etc)
netif_set_default()
if (dhcp)
dhcp_start();
else
netif_set_up();
No, that was old usage. It has been changed with 2.0.0: you now *always*
need to set the netif up. Then call dhcp_start() or net_set_addr().
A pointer to an example that does this, or 5 lines of pseudo code would
be great!
There is 'contrib\examples\example_app\test.c', but this file is
somewhat of a bad example since it tries to include all possible code
with ifdefs...
So:
netif_add() // either with satic IP address or call netif_set_addr() later
netif_set_default()
netif_set_up()
if (dhcp)
dhcp_start();
else
netif_set_addr(); // if not set with netif_add()
And remember that the netif has to set the link flag up
('netif_set_link_up()') for things to work.
(SAME54, lwip 2.0.3, free RTOS 10.0.0)
Thanks Simon, Sylvain, Steve, Patrick, and others who are providing
such great help to this list! Most of my questions are answered by just
watching the emails on this list.
Good to know!
Regards,
Simon
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