>I have an ethernet interface for communication and using LwIP(LwIP 2.00.a >version) I suppose this is a release number provided by your port maintainer. Currently, last release is 1.2.0 >From mail group , I read that this is possible with creating seperate network >interfaces with 'netif_add' function.
Can you provide these mails references? >In my design , I thought of creating two threads which will establish two >sockets and add seperate network interfaces at the same time. >But it didn`t work. While I could communicate with one IP number , the other >connection could not be established. I'm not sure that lwIP support that like this. Perhaps it's possible, but your driver should handle that. How do you have implemented your driver "low_level_input" calls? ==================================== 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 : [EMAIL PROTECTED] Web Site : http://www.hymatom.fr <http://www.hymatom.fr/> ==================================== P Avant d'imprimer, penser à l'environnement -----Message d'origine----- De : [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] De la part de KORAY KORKMAZER (MIKES INTERNET) Envoyé : mercredi 7 novembre 2007 10:21 À : [email protected] Objet : [lwip-users] using 2 IP numbers at the same time Hello, I am pretty new in using lwip and want to ask your recommendations on an issue about using 2 IP numbers at the same time. Let me describe my design first: I am working on an Xilinx ML-403 platform and writing code for PPC inside the FGPGA. I have an ethernet interface for communication and using LwIP(LwIP 2.00.a version) for it. Also using Xilinx MicroKernel. Simply my application will have a static IP number and will communicate with another system which has a static IP number too. But now another requirement has been arised. That is my application must communicate with a second system from an another IP number. And I still have one physical ethernet port. This means that my application must have 2 IP numbers. And it must listen both connections at the same time. From mail group , I read that this is possible with creating seperate network interfaces with 'netif_add' function. In my design , I thought of creating two threads which will establish two sockets and add seperate network interfaces at the same time. But it didn`t work. While I could communicate with one IP number , the other connection could not be established. Here is my thread that I use for creating socket: void *socket_app_thread( void *arg ) { .....//declarations an initializations IP, port , MAC, subnet, gw xtemacif_setmac( 0, ( u8_t* )fullmac ); //Set MAC IP4_ADDR( &gw, gateway[ 0 ], gateway[ 1 ], gateway[ 2 ], gateway[ 3 ] ); //Set gateway IP4_ADDR( &ipaddr, ip[ 0 ], ip[ 1 ], ip[ 2 ], ip[ 3 ] ); //Set ip IP4_ADDR( &netmask, subnet[ 0 ], subnet[ 1 ], subnet[ 2 ], subnet[ 3 ] ); //Set subnet msk /* allocate netif structure */ default_netif = mem_malloc( sizeof( struct netif ) ); if ( default_netif == NULL ) { return NULL; } default_netif = netif_add( default_netif, &ipaddr, &netmask, NULL, &XTemacIf_ConfigTable[ 0 ], xtemacif_init, tcpip_input ); netif_set_default( default_netif ); /* Register XEmacHandler with interrupt controller and enable interrupts * with XMK */ register_int_handler( XPAR_OPB_INTC_0_TRIMODE_MAC_GMII_IP2INTC_IRPT_INTR, (XInterruptHandler )XTemac_IntrFifoHandler, xtemacif_ptr->instance_ptr ); /* Enable EMAC interrupts in XMK */ enable_interrupt( XPAR_OPB_INTC_0_TRIMODE_MAC_GMII_IP2INTC_IRPT_INTR ); /*-----------------------------------------------------------------------*/ /* create socket and start application */ /*-----------------------------------------------------------------------*/ sock = socket( AF_INET, SOCK_STREAM, 0 ); addr.sin_family = AF_INET; addr.sin_port = htons( port ); addr.sin_addr.s_addr = INADDR_ANY; bind( sock, ( struct sockaddr* ) &addr, sizeof( addr ) ); listen( sock, 7); SockDesc = accept( sock, ( struct sockaddr* ) &rem, &lensock ); } The second thread is similar with this one, only IP and port number is different. Do you have any idea where I am having mistakes? I really appreciate for your help. Thanks in advance. Koray.
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