problem with the W5100 device

Question

Hello everyone, have a good day, I’m new to the forum. I am working on some projects to develop smart home systems with arduino. I use Arduino uno, ethernet shield and teleduino structures in it. but i am having a problem with the wiznet w5100 device. I use vdsl modem (VMG3312-B10B) and switch (EP-808SX-C) devices at home. I program the arduino device with the teleduino sample code and start the testing process. I do the test operations through teleduino api. everything works properly when I connect modem <-> ethernet <-> w5100. but when i connect with modem <-> ethernet <-> switch <-> ethernet <-> w5100, i can’t access teleduino api. It seems that the assignment of the ip is done on the main page of the modem, but this screen is only visible when a direct connection between the modem and the w5100 is provided. I send a ping through windows cmd and everything looks fine. modem-mainpage-11647×318 38.2 KB however, when I connect the w5100 device with a switch, the connection information on the modem interface is lost. 1644×261 35.2 KB my source codes: /* Teleduino328EthernetClientProxy.ino - Teleduino328EthernetClientProxy example Version 328-0.6.9 Nathan Kennedy 2009 - 2014 http://www.teleduino.org This sketch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. */ #include #include #include #include #include #include // User configurable variables byte useDhcp = true; byte useDns = true; byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; IPAddress deviceIp(192, 168, 1, 57); // Only if useDhcp is false IPAddress gatewayIp(192, 168, 1, 1); // Only if useDhcp is false IPAddress dnsIp(192, 168, 1, 1); // Only if useDhcp is false IPAddress subnet(255, 255, 255, 0); // Only if useDhcp is false IPAddress serverIp(173, 230, 152, 173); // Only if useDns is false char serverName[] = "us01.proxy.teleduino.org"; // Only if useDns is true unsigned int serverPort = 5353; // Can be set to either 53 or 5353 byte statusLedPin = 8; // User configurable key, this is used to authenticate with the proxy server // This is checked against the EEPROM on boot and written if necessary // The proxy server retreives the key from the EEPROM byte key[] = { 0xE3, 0x11, 0xD2, 0x41, 0xE6, 0x5F, 0x6D, 0x6C, 0x5B, 0x7A, 0x7C, 0x79, 0xEB, 0x10, 0x64, 0xDE }; // E311D241E65F6D6C5B7A7C79EB1064DE -> API KEY // Other required variables byte data[257]; byte dataLength; byte hexStage; unsigned long lastInstruction = 0; unsigned long lastRefresh = 0; byte stage = 0; // Declare client object EthernetClient Client; void setup() { // Load presets Teleduino328.loadPresets(); // Set status LED pin Teleduino328.setStatusLedPin(statusLedPin); Teleduino328.setStatusLed(1); // Initialisation // Check the EEPROM header and check to see if the key is correct // This is to ensure the key is not cleared from the EEPROM…

irina · Answer

Could you see the DHCP assigned information(like IP address) via uart debug message? I want to know if the W5100 is assigned an IP via DHCP.