[SOLVED] wiz550io client fails to connect to http

Question

SOLVED The problem was in how i created my shared network on my laptop, i deleted it and created it again and that fixed the issue. also i had fragmentation enabled, after disabling that i now get ‘error 400 bad request’ from the server which is a much better problem to have thanks guys for your replies [quote] Hi, I have my module working successfully as a server, but now i need to open another port and connect to a specific IP as an http client. If I set destination port as 21 the CONNECT result is successful (0x17) and I can see the ACK from the server on Wireshark, however when I set the destination port as 80 there’s no ACK from the server and eventually I get a timeout error. I can post code if required, (haven’t got it on me right now), however someone with more TCP/IP experience than myself might already be aware of issues and enlighten me. i.e. do I need to change something in the header? and if so what? Please advice EDIT I should mention the server is definitely listening on port 80, as it is an http server, also I have made a telnet connection to it on port 80 with no problems, also I had disabled my firewall while testing.[/quote]

coffeecupnz · Answer

Thanks midnightcow I appreciate your reply I’m not sure I understand though, if it were a port being re-used why would chance have it that it always fails when I attempt to connect to port 80? I’m not attempting to open both ports on the same piece of code, rather, I compiled my code with port 21 hardcoded, then recompiled and cycled the power with port 80 hardcoded in. And always, it is port 80 that I fail to connect to…

coffeecupnz · Answer

here’s my code, sorry i should have included earlier void wiz550io_hit_server(void) { switch(hit) { case 0: // idle break; case 1: spi_send_short(0x0010, 0x2C, 80); // dest PORT 80 spi_send_ip(0x000C, 0x2C, 101, 98, 9, 49); // dest ip spi_send_ip(0x0001, 0x04, 192,168,1,5); // gateway spi_send_ip(0x0005, 0x04, 255, 255, 255, 0); // mask spi_send_short(0x0004, 0x2C, 13742); spi_send_short(0x0012, 0x2C, 1024); spi_send_char(0x0000, 0x2C, 0x01); // TCP mode spi_send_char(0x0001, 0x2C, 0x01); // OPEN ver = 0xFF; spi_trans_char(0x0003, 0x28, &ver); if(ver == 0x13) hit = 2; // correct response to OPEN break; case 2: spi_send_char(0x0001, 0x2C, 0x04); // CONNECT hit = 3; break; case 3: hit = 3; ver = 0xFF; spi_trans_char(0x0003, 0x28, &ver); if(ver == 0x17) hit = 4; // correct response to CONNECT break; case 4: PORTA |= 0x01; o_add = 0xFFFF; spi_trans_short(0x0024, 0x28, &o_add); // read start address spi_send_short(0x0022, 0x2C, o_add); // write it to start index o_len = spi_trans_file(o_add, 0x34, hit_server); // transfer page to tx buffer o_add += o_len; spi_send_short(0x0024, 0x2C, o_add); // update end address spi_send_char(0x0001, 0x2C, 0x20); // send it!! hit = 5; break; case 5: ver = 0xFF; spi_trans_char(0x0002, 0x28, &ver); hit = 5; if(ver & 0x10) hit = 6; // all done? or error? if(ver & 0x02) hit = 6; break; case 6: //PORTA |= 0x01; spi_send_char(0x0001, 0x2C, 0x08); // end connection hit = 0; break; } }

hjjeon0608 · Answer

Server application could hold before port number although before connection is closed(e.g. windows). If that, Server application doesn’t accept re-connection with same port(combination of source and destination port number) number. If you want to connect with same destination port number, I recommend to change source port number and open.

coffeecupnz · Answer

ok, i see that’s what midnightcow was saying as well, thanks i’ll test that out and upload my results

coffeecupnz · Answer

still no luck, i’ve modified the code to loop through port numbers and left it running all night. here’s the new code // #define SP 49292 void wiz550io_hit_server(void) { switch(hit) { case 0: // idle break; case 1: spi_send_short(0x0010, 0x2C, 80); // dest PORT 80 spi_send_ip(0x000C, 0x2C, 10,1,1,1); // dest ip spi_send_ip(0x0001, 0x04, 10, 1, 1, 1); // gateway // was 192.168.1.5 spi_send_ip(0x0005, 0x04, 255, 255, 255, 0); // mask spi_send_short(0x0004, 0x2C, my_port); spi_send_short(0x0012, 0x2C, 1024); spi_send_char(0x001b, 0x04, 1); // num retry spi_send_short(0x0019, 0x04, 0xFF00); // timeout spi_send_char(0x0000, 0x2C, 0x01); // TCP mode spi_send_char(0x0001, 0x2C, 0x01); // OPEN ver = 0xFF; spi_trans_char(0x0003, 0x28, &ver); if(ver == 0x13) hit = 2; // correct response to OPEN break; case 2: spi_send_char(0x0001, 0x2C, 0x04); // CONNECT hit = 3; break; case 3: hit = 3; ver = 0xFF; spi_trans_char(0x0003, 0x28, &ver); if(ver == 0x17) hit = 4; // correct response to CONNECT if(ver == 0x00) hit = 7; break; case 4: PORTA |= 0x01; o_add = 0xFFFF; spi_trans_short(0x0024, 0x28, &o_add); // read start address spi_send_short(0x0022, 0x2C, o_add); // write it to start index o_len = spi_trans_file(o_add, 0x34, hit_server); // transfer page to tx buffer o_add += o_len; spi_send_short(0x0024, 0x2C, o_add); // update end address spi_send_char(0x0001, 0x2C, 0x20); // send it!! hit = 5; break; case 5: ver = 0xFF; spi_trans_char(0x0002, 0x28, &ver); hit = 5; if(ver & 0x10) hit = 6; // all done? or error? if(ver & 0x02) hit = 6; break; case 6: //PORTA |= 0x01; spi_send_char(0x0001, 0x2C, 0x08); // end connection hit = 0; break; case 7: ++my_port; if(my_port == 0) my_port = SP; hit = 1; // try again break; } } // please if there’s nothing wrong with the code is it a problem with my setup? I have the module connected to my laptop’s ethernet port, i enabled ‘share my internet connection’ on the laptop, on the module the gateway ip is my laptop’s ip address. that wasn’t working…

coffeecupnz · Answer

Cheers for that I have since re-written the code and tidied up some bits, but I’ll check at home tonight that I didn’t carry that mistake across! Thanks