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Re: [lwip-users] PPP server problem

From: Sylvain Rochet
Subject: Re: [lwip-users] PPP server problem
Date: Mon, 4 May 2015 20:47:55 +0200
User-agent: Mutt/1.5.21 (2010-09-15)

Hi Charles,

On Mon, May 04, 2015 at 06:16:54PM +0000, address@hidden wrote:
> Hi Sylvain,
> I try to use PPP server on AT91SAM7x chip and it failed authentication 
> (both sides using PAP). Here's the debug message from a Linux (PPP 
> client) followed by lwIP PPP debug message. Interesting thing is the 
> PPP authentication failure also causes the whole lwIP stack stop 
> working. I continuously PING my Ethernet interface while I start the 
> PPP client on Linux, after a while, the PING stopped and never come 
> back.

Looks like something is wrong in your SIO port… or you don't have enough 
stack ?   PPP stack requirement is pretty huge, but for PAP it should be 
rather low.

Which PPPoS input method are you using ?  NO_SYS ?

> Could you take a look at those messages and tell me what could be 
> wrong?

PPP_SERVER support if fairly new, but humm, it should work.

> (...)
> ppp_send_config[1]..
> pppos_recv_config[1]: in_accm=0 0 0 0..
> (...)

Above anything else, please enable PRINTPKT_SUPPORT in lwIP.


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