lwip-users
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [lwip-users] "minimal" on unix


From: Mumtaz Ahmad
Subject: Re: [lwip-users] "minimal" on unix
Date: Tue, 29 Aug 2006 10:24:02 +0500

Dear yadnesh
 
tcp_accept would get called if some client tries to connect on a listening port .Just pingining does not trigger tcp module .
Your second query is not clear .There is always a need of some ethernet driver to actually send the data physically on cable. So low_level_xxx functions need to be implemented
 
Ahmad
 
----- Original Message -----
Sent: Tuesday, August 29, 2006 9:52 AM
Subject: [lwip-users] "minimal" on unix

Hi All,

I am working on Linux and have just started learning about lwIP functionality.  So, studying the example ..../contrib/ports/unix/proj/minimal

There seem to be 2 different types of implementation examples provided.
1) using echo.c
    In this tcp_new(), tcp_bind(), and tcp_accept() are used. 
    I am really confused about working of this implementation.  tcp_accept() has specified echo_accept() as a callback function for all packets received over the network interface.  But echo_accept() never seems to be called when I ping the IP address. 
Could somebody please give me some pointers about what is happening here and whether I am doing something wrong?

2) using mintapif.c
    This works perfectly fine for replying to ping. 
I have the following doubts:
1) Does lwIP communicate directly over the Ethernet "eth0"?  or the "tap" driver is always required?
2) Is it mandatory for all applications to write code for low_level_init(), low_level_input(), and low_level_output() ?

Thanks and Regards,
Yadnesh Phadke


--
This message has been scanned for viruses and
dangerous content by Streaming Networks, and is
believed to be clean.


_______________________________________________
lwip-users mailing list
address@hidden
http://lists.nongnu.org/mailman/listinfo/lwip-users

--
This message has been scanned for viruses and
dangerous content by Streaming Networks, and is
believed to be clean.

reply via email to

[Prev in Thread] Current Thread [Next in Thread]