Re: [lwip-users] DHCP: IF not connected on power up

[Jörg Hermann]

In addition to invoke dhcp_start(), you
have to periodically call the timer service routines dhcp_coarse_tmr() 
and dhcp_fine_tmr()
(see the description in the header of dhcp.c)

-
 Joerg

Am 07.06.2010 15:46, schrieb Bill Auerbach:
> I start DHCP and simply wait for the netif to come up:
>
>         dhcp_start(netif_default);
>         while(! netif_is_up(netif_default))
>                 ;
>
>    
> > -----Original Message-----
> > From: address@hidden
> > [mailto:address@hidden On
> > Behalf Of Bernhard 'Gustl' Bauer
> > Sent: Monday, June 07, 2010 3:42 AM
> > To: Mailing list for lwIP users
> > Subject: [lwip-users] DHCP: IF not connected on power up
> >
> > Hi,
> >
> > I'm using raw LWIP with IF CS8900.
> >
> > When the interface is not connected during power up, DHCP cannot assign
> > an IP. When the IF is connected some time later LWIP should ask for an
> > IP - but it does not.
> >
> > What must be done to trigger a DHCP cycle? Is there a mechanism to show
> > a connected IF?
> >
> > TIA
> >
> > Gustl
> >
> > _______________________________________________
> > lwip-users mailing list
> > address@hidden
> > http://lists.nongnu.org/mailman/listinfo/lwip-users
> >      
>
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