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From: | Luigi |
Subject: | [lwip-users] connection request dropped in IP layer |
Date: | Wed, 1 Aug 2007 19:51:52 +0200 |
Hi,
I'm trying to create a comunication between a client and an
echo server;
but there is a behaviour of the server that I don't
understand, the packet of the connection request from the client is dropped when
is received from the server, it seems that the packet isn't for the
server.
That is what I wrote in my programs:
/* for the client */
...
mem_init();
memp_init(); pbuf_init(); netif_init(); ip_init(); tcp_init(); printf("stack TCP/IP initializzato.\n"); IP4_ADDR(&GateWay,
192,168,0,2);
IP4_ADDR(&IP, 192,168,0,1); IP4_ADDR(&NetMask, 255,255,255,0); netif_add(&Net, &IP,
&NetMask, &GateWay, NULL, clientif_init, ip_input);
netif_set_default(&Net);
cli_init(pcb); ...
void cli_init(struct tcp_pcb
*pcb)
{ struct ip_addr IPDest; IP4_ADDR(&IPDest, 192, 168, 0,
2);
pcb = tcp_new();
tcp_connect(pcb, &IPDest, 5000,
&cli_connected);
}
...
/* for the server */
...
mem_init();
memp_init(); pbuf_init(); netif_init(); ip_init(); tcp_init(); printf("stack TCP/IP initializzato.\n"); IP4_ADDR(&GateWay, 192,168,0,1); IP4_ADDR(&IP, 192,168,0,2); IP4_ADDR(&NetMask, 255,255,255,0); netif_add(&Net, &IP,
&NetMask, &GateWay, NULL, serverif_init, ip_input);
netif_set_default(&Net); srv_init();
...
void srv_init(void)
{ struct tcp_pcb *pcb; pcb =
tcp_new();
tcp_bind(pcb, IP_ADDR_ANY, 5000); pcb = tcp_listen(pcb); tcp_accept(pcb,
srv_accept);
} ...
I
don't understand where is the error, there is someone that can help
me?
thanks.
Luigi
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