Re: [lwip-users] I cannot get PPP-new IP forwarding and pppapi_set_default() work

[Sylvain Rochet]

Hi Charles,

On Tue, Apr 08, 2014 at 03:55:29PM +0000, address@hidden wrote:
> Hi Sylvain,
> 
> Here's my scenario: 
> 
> I am developing a gateway between Ethernet and PPP using ppp-new 
> branch. The gateway device has one Ethernet port(IP 192.168.0.50, 
> i.e., 0x3200a8c0) and one PPP port (IP 192.168.1.105, i.e., 
> 0x6901a8c0). For testing purpose, I connected the Ethernet port to a 
> PC (IP 192.168.0.211, i.e., 0xd300a8c0) and connected the PPP port to 
> a Linux PPP server's PPP port(IP 192.168.1.106, i.e., 0x6a01a8c0). PPP 
> connection has been successfully built up. From my PC, I can ping my 
> gateway's PPP port (192.168.1.105) but I couldn't ping PPP server 
> (192.168.0.106). I am sure I have set PC routing correctly because the 
> ping packet can reach my gateway's serial port as the debug message 
> shows below. Here are the debug messages, the first part shows the 
> success of ping my gateway's PPP port while the second part shows the 
> failure of ping PPP server.

This setting looks wrong, lwIP does not support IP subnets shared by 
multiple interface.

But the PPP session is UP, which is a good news for me ;-)

Sylvain

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