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From: | Peter Graf |
Subject: | Re: [lwip-users] How to test IP over PPP ? |
Date: | Wed, 03 Dec 2003 11:30:54 +0100 |
User-agent: | Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.5) Gecko/20031013 Thunderbird/0.3 |
Hello Marc,
Many thanks. Since PPC can also run in little-endian mode, and many PPC targets do so, please allow asking back if you're sure about the mode?I have just tested lwIP's PPP on a big-endian machine (PPC) and it works just fine.
I tried to manually analyze a configure request sent out by lwIP PPP, sniffed from the serial port, and found something that might be endianess confusion. My PPP documentation (from a book) is a bit unclear, so I'm possibly wrong. Do you have a pointer to a description of the configure request packets?
[PPP Test on a single Linux machine snipped]Thanks for the info. The problem occurs with an embedded non-Linux target though. (Connected to a Linux box.)
On low level, the machine is definitely receiving data. I'll try to check if it reaches PPP.It looks like your target isn't receiving anything; just continuously sending LCP Configure-Request packets and timing out waiting for the response.
All the best, Peter
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