[En-Nut-Discussion] DHCP

Ulrich Prinz ulrich.prinz at googlemail.com
Mon Nov 28 23:39:28 CET 2011

Hi Michael,

never checked that, but I used EIR in my home network and there the IP
is renewed once a day too. The EIR is always-on and I never got a
problem with that.

I will be at that thing in my holidays from mid of December again. DHCP
is the same code for all, so it shouldn't make a difference if I develop
on ARM.

Could be that it is related to the same problem as connection
recognition is. The stack doesn't see if the connection is broken and so
it cannot take any measurements to restart.

Best regards

Am 28.11.2011 21:15, schrieb Michael Hellwig:
> Hello everybody,
> for a few years now, im using a bunch of ethernut 1.3g/h for a small
> data-aquisition application. Everything worked just fine. But now for
> security reasons they made the use of DHCP mandatory in our network. I
> updated my program accordingly and found that the lease I got is not
> renewed. After 8hrs the ethernuts are not responding anymore and I have
> to restart them. There is no hardcoded IP-address in the eeprom and I
> tried several example codes to no avail.
> Also I checked the discussion arcives and applied suggested patches but
> it still fails.
> I get the following lease data:
> RenewalTime: 30000
> RebindTime: 52500
> LeaseTime: 60000
> from 2 different ServerIDs, so there seems to be a secondary server in
> the net.
> Is anybody out there using DHCP with NutOS successfully?
> Im using Nut/OS
> Best regards
> Michael
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