RE : Re : RE : [lwip-users] How to begin using lwIP stack

[Frédéric BERNON]

Hi

>link_callback==UP
>status_callback==UP, local interface IP is 192.168.1.200
Ok, your netif is "up"

>3com.com: 192.136.34.41
DNS client is working

>sntp_process: Wed Jul 02 10:23:44 2008 
SNTP client is working

>ping: send 192.168.1.1
>ping: recv - 1000 ms - timeout
It's seems that your gateway doesn't always answer (do a wireshark capture to 
be sure, perhaps the problem is somewhere else).

>I'm using the last stable contrib-1.3.0, (23 Mar 2008), not the version on 
>CVS, and i cannot decide what apps to start in Test.exe.
Take a look to 
http://cvs.savannah.gnu.org/viewvc/contrib/ports/win32/test.c?revision=1.15&root=lwip&view=markup,
 in apps_init(), you will see how the last release allows to configure which 
apps are started (the last code is not very different than the one you use)

>I think that now the stack is working, isn't it?
Yes, it seems it work. You can check an incoming tcp connection by trying to 
connect to http://NETBIOSLWIPDEV (it should work since the netbios "server" is 
started in test.c) or http://192.168.1.200 .

>modbus protocol on tcp
I think you can find on the net some source code for that

>But I don't understand what I have to do to initialize the lwip stack before i 
>try to create the server or the client.
In fact, nothing more, since the stack is started, you just have to add your 
code in apps_init (with this framework).

  
====================================
Frédéric BERNON 
HYMATOM SA 
Chef de projet informatique 
Microsoft Certified Professional 
Tél. : +33 (0)4-67-87-61-10 
Fax. : +33 (0)4-67-70-85-44 
Email : address@hidden 
Web Site : http://www.hymatom.fr 

Plan d'accès au siège social 

====================================
P Avant d'imprimer, penser à l'environnement
 


-----Message d'origine-----
De : address@hidden [mailto:address@hidden De la part de Antonio de Angelis
Envoyé : mercredi 2 juillet 2008 10:50
À : Mailing list for lwIP users
Objet : Re : RE : [lwip-users] How to begin using lwIP stack


Hi,

firs of all thank you for your reply. I've modified my lwipcfg_msvc.h file  
with appropriate values and now when I start the Test.exe application I  
obtain these results:

Starting lwIP, loopback interface IP is 127.0.0.1
Starting lwIP, local interface IP is 192.168.1.200
  0: \Device\NPF_GenericDialupAdapter
  1: \Device\NPF_{7A579B11-E5FE-4EFE-AB55-AD42C66289D1}
  2: \Device\NPF_{48C5A4AA-056F-4955-BB40-55BAD478E21C}
  3: \Device\NPF_{7F6AC404-196A-4726-B708-2EB0643B7673}
USE: Intel(R) PRO/100 VE Network Connection (Microsoft's Packet Scheduler)
MAC: 00:13:A9:08:7E:F4
link_callback==UP
status_callback==UP, local interface IP is 192.168.1.200
ping: send 192.168.1.1
3com.com: 192.136.34.41
sntp_process: Wed Jul 02 10:23:44 2008
ping: recv - 999 ms - timeout
ping: send 192.168.1.1
ping: recv - 999 ms - timeout
ping: send 192.168.1.1
ping: recv 192.168.1.1 2 ms
ping: send 192.168.1.1
ping: recv - 999 ms - timeout
ping: send 192.168.1.1
ping: recv 192.168.1.1 2 ms
ping: send 192.168.1.1
ping: recv - 999 ms - timeout
ping: send 192.168.1.1
ping: recv 192.168.1.1 1 ms
ping: send 192.168.1.1
ping: recv - 999 ms - timeout
ping: send 192.168.1.1
ping: recv 192.168.1.1 2 ms
ping: send 192.168.1.1
ping: recv - 1000 ms - timeout

until I press a key. I'm using the last stable contrib-1.3.0, (23 Mar  
2008), not the version on CVS, and i cannot decide what apps to start in  
Test.exe.

I think that now the stack is working, isn't it?

I'm interested in using lwIP as TCP/IP stack in Windows environment  
because I've to create two simple applications, a server and a client,  
that establish a tcp connection. Then I have to create a more complex  
application implementing the modbus protocol on tcp, and this application  
maybe will be ported on an embedded system. But now I'm concentrating on  
simulate on the same machine a tcp connection between a client and a  
server and then build on this communication an application which uses the  
modbus protocol on top of the tcp. I would appreciate if you can send me  
examples on how to create a tcp server and a tcp client in such a way. Now  
I'm studying the test application, i try to remove the code that i don't  
need and then i try to modify it to my needs. But I don't understand what  
I have to do to initialize the lwip stack before i try to create the  
server or the client.



In data 01 luglio 2008 alle ore 18:21:49, Frédéric BERNON  
<address@hidden> ha scritto:

> Hi,
>
> When you have create a lwipcfg_msvc.h file, do you have set values to 
> be
> compatible with your network (LWIP_PORT_INIT_IPADDR, LWIP_PORT_INIT_GW,  
> LWIP_PORT_INIT_NETMASK) ?
>
> I suppose you don't use the last lwip/contrib/ports/win32, because the
> "ping" application is enabled in your case. Last contrib files allow to  
> enable/disable "apps" started in the test.
>
> Do use the test.c as starting point, you could remove all the code
> inside the apps_init() function, and add your own one.
>
> Question: what is your interest of using lwIP as IP stack on a Windows
> environment ?
>
> To help you on such problems, perhaps it will be faster to chat on the
> lwIP IRC channel (#lwip on chat.freenode.net).
> ====================================
> Frédéric BERNON
> HYMATOM SA
> Chef de projet informatique
> Microsoft Certified Professional
> Tél. : +33 (0)4-67-87-61-10
> Fax. : +33 (0)4-67-70-85-44
> Email : address@hidden
> Web Site : http://www.hymatom.fr
>
> Plan d'accès au siège social
>
> ====================================
> P Avant d'imprimer, penser à l'environnement
>
>
> -----Message d'origine-----
> De : address@hidden
> [mailto:address@hidden De la  
> part de Antonio de Angelis
> Envoyé : lundi 30 juin 2008 23:58
> À : address@hidden
> Objet : [lwip-users] How to begin using lwIP stack
>
>
> Hi All,
>
> I'm a new user of lwIP, i have to work with the win32 port of the stack.
> I've downloaded the stable 1.3.0 release and the contrib 1.3.0 files.
> I've succesfully compiled in Visual Studio 2008 the msvc8 port with the
> three projects (lwIP, lwIP_pktif, lwIP_test). When I launch the
> executable, Test.exe, i see these messages on screen:
>
> Starting lwIP, loopback interface IP is 127.0.0.1
> Starting lwIP, local interface IP is 192.168.1.200
>  0: \Device\NPF_GenericDialupAdapter
>  1: \Device\NPF_{7A579B11-E5FE-4EFE-AB55-AD42C66289D1}
>  2: \Device\NPF_{48C5A4AA-056F-4955-BB40-55BAD478E21C}
>  3: \Device\NPF_{7F6AC404-196A-4726-B708-2EB0643B7673}
> USE: Intel(R) PRO/Wireless 3945ABG Network Connection (Microsoft's
> Packet Scheduler)
> MAC: 00:13:02:65:C3:CB
> link_callback==UP
> status_callback==UP, local interface IP is 192.168.1.200
> ping: send 192.168.1.1
> ping: recv - 997 ms - timeout
> ping: send 192.168.1.1
> ping: recv - 998 ms - timeout
> sntp_request: not recvfrom==0
> ping: send 192.168.1.1
> ping: recv - 998 ms - timeout
> ping: send 192.168.1.1
> ping: recv - 998 ms - timeout
> 3com.com: <not found>
> ping: send 192.168.1.1
> ping: recv - 998 ms - timeout
> ...
> ...until i press a key. Is it the correct behaviour of the test
> application? Is the stack working correctly? I want to use the stack to
> implement a TCP connection beetween hosts on a Win32 platform. How do I
> have to design my application? I want to use the socket API, so what do
> I have to do to build the application (e.g. what headed files to
> include, what libraries to link...etc.). Sorry but i'm not expert in
> network programming and I want to learn how to use the lwIP stack!  
> Regards
>
> Antonio de Angelis
>
>
>
>
> _______________________________________________
> lwip-users mailing list
> address@hidden http://lists.nongnu.org/mailman/listinfo/lwip-users



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