Re: [lwip-users] PPP no IP address assigned

[Patrick Klos]

On 4/1/2015 2:47 AM, Michael Waeber wrote:
> Hi all
>
> I try to integrate PPP with a GPRS modem in our system. lwIP works well
> for ethernet in our system since 3 years. Since PPP is currently
> actively developed I've upgraded from 1.4.1 to current Master
> (16.03.2015).
>
> The modem is connected to GPRS, then the PPP session is started. The
> communication parameters are negotiated successfully (LCP). The
> authentication is OK: Login OK. Now lwIP sends a Configuration request
> (IPCP):
>
> Raw:
> ff 03 80 21 01 01 00 16 03 06 00 00 00 00 81 06 00 00 00 00 83 06 00 00
> 00 00 6e db 7e

May I ask exactly what the LCP negotiations looked like?  What options 
were negotiated?  If nothing else, what was the ACCM set to?

Patrick Klos
Klos Technologies, Inc.