Multiple I/O on a serial device

Hello,

I'm trying to setup multiple instances of locals ppp in order to test a L2TP daemon. The problem, is that once ppp sets up the line discipline nothing can be read from or written to the associated serial device. So I was wondering if there was an easy way to do multiple I/O on a serial, or maybe "link" I/O of two serials.
If anyone has suggestions, it would be greatly appreciated.

Nicolas Olivier

Hi,

Now, I´m just trying to do something like this. Somebody told me that you can use PTYs (pseudo terminals). You can look in man: "openpty" and "forkpty".
The question is to do a simple task that create a pseudo-terminal. This PTY is like a pipe; on one end you see the pipe, and on the other you see a virtual ttySxx, where you can attach pppd. After this, the new task can read from the other end and decide if put the data to a real ttySxx.

Please, if you are suceed on it, let me know.

Miguel
----- Original Message -----
From: "Nicolas Olivier" <[email protected]>
To: <[email protected]>
Sent: Wednesday, September 15, 2004 2:52 PM
Subject: Multiple I/O on a serial device

L2TP daemon.

read from or

an easy way

Have you looked at OpenL2TP?

http://openl2tp.sourceforge.net/

/james