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From: | Patrick Klos |
Subject: | Re: [lwip-users] PPPoS TCP Connection Reject |
Date: | Wed, 1 Aug 2018 15:23:48 -0400 |
User-agent: | Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 |
On 8/1/2018 3:18 PM, gzayzay wrote:
Hello Patrick, Thanks for the feed back. Per your input, there are few issues that I did like to clarify. 1. I have a single UART and I don't believe that I could be tapping the wrong line. During PPP negotiations, I do see the data on the logic analyzer. Once IP address has been received, I no longer see incoming data on the logic analyzer/ 2. I am also convince that the incoming data never gets on the UART after connection for the LWIP stack to handle it. 3. When I halt the microcontroller and send ping to the IP address, the device is still responding to the pings which levels me to believe that the modem is responding instead of the LWIP stack since the micro is not running.
Very important piece of information there. That's good to know!
4. By transparent passing, I meant, the data should not be process internally by the modem but instead sent over the UART channel and allow the LWIP stack to handle all processing.
If that is the case, then you'll need to figure out how to get the modem to stop intercepting the data and/or packets. That has nothing to do with PPPoS or LwIP - that sounds like a modem specific behavior you would need to disable in the modem. What modem are you using?
Patrick Klos Klos Technologies, Inc.
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