Re: IP4 Config Troubles with DHCP

["Wu, Jiaxin" <jiaxin.wu@intel.com>]

Thanks Eugene, I will try to reproduce the issue and dig it out. Any process will inform you.

Best Regards!
Jiaxin

> -----Original Message-----
> From: Cohen, Eugene [mailto:eugene@hp.com]
> Sent: Thursday, August 11, 2016 10:31 PM
> To: Wu, Jiaxin <jiaxin.wu@intel.com>; edk2-devel@lists.01.org
> Subject: RE: IP4 Config Troubles with DHCP
> 
> Jianxin,
> 
> > I want to confirm with you the steps to reproduce the issue:
> >
> > 1. Set policy to DHCP.
> > 2. If DHCP process is not complete yet, then run one App to invoke the
> > UDP4 Configure with "UseDefaultAddress = TRUE" (loop to keep calling
> > Udp4->Configure until Ip4Mode.IsConfigured changes to TRUE)
> > 3. Even DHCP succeed but Ip4Mode.IsConfigured flag never set to
> > TRUE     ---- failure here!!!
> >
> > Above steps right?
> 
> Yes, that summarizes it well.
> 
> > Actually, you don't need to retry the UDP configuration loop according
> > the Ip4Mode.IsConfigured flag. You are only recommended to set a timer
> > to check the mapping status after the configuration:
> 
> This is exactly what we used to do.  Recently it stopped working which is why
> we now have to re-do service binding creation and configuration.
> 
> > If DHCP process succeed, Ip4Mode.IsConfigured should be updated. If
> > not, any bug may be existed.
> 
> From the traces I've looked at I can clearly see that the DHCP process as
> finished (lease acquired) and that Ip4Mode.IsConfigured is still FALSE.  I'll send
> you a detailed trace of this separately.
> 
> So yes, I think there is a bug that crept in.
> 
> Eugene