PPP over TCP

Embedded Devices NET+OS
1

Hello,

we need to implement PPP over TCP. My idea was to create special driver, that would connect to specific IP address when opened. This kind of works, but after few sends&receives NET+OS hangs.

Current implementation uses background thread for _poll, but _read and _write call directly send and recv in non-blocking mode.

Is it supposed to work like this or we should add two circular buffers to avoid Treck calls from within device driver?

Bye,
Filip Zawadiak, DOMIQ

2

Perhaps I’m a little confused about your implementation, but there is a PPP driver included in NET+OS 7.4.2.

Why don’t you use that?

~Mike

3

I want to use provided PPP, but not over serial connection, but TCP connection, for VPN like functionality.

In the meantime I implemented it in a way that all networking calls are done outside of driver code, but there are still some issues :frowning: