Does anyone know if it's possible to send serial commands to NEC DT300 IP phone?
The phone is connected to the the intranet with ethernet wire. There is also an a USB port which I'm not sure the function of.
Thanks in advance,
Cuitino
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I am wondering what is the best way to reveal all IP addresses to devices that are plugged into a switch, that is then plugged into an EdgeMax Router 4 by Ubiquiti. I attempted to use the nmap command on linux to reveal all devices behind 192.168.1.1/24, which is the address that the switch is plugged into, but only some devices came back. I was searching for the IP address of an OpenBMC device connected via the switch, but I couldn't find it.
The switch is a basic TP-Link gigabit 8 port switch (SG-1008D) and to my knowledge and research, it doesn't appear to have a web console or interface to reveal IPs there. And when I log into my EdgeMax Router 4, I only see devices at the router level.
I am not the most versed in networking knowledge, but I did a few things first to research. If anyone has any further suggestions on what else I could try, please let me know.
Only layer 3 switches have the ability to display the IP address of the devices directly connected to them. Your SG-1008D is just an unmanaged switch and it will not be able to display the MAC or the IP address of the devices connected to it. You will be able to identify the MAC and IP address of the devices connected to the switch by running network tools such as Angry IP Scanner or by looking into the connected devices list of the router. But that will not show you the ports where the devices are connected to in the switch.
I need to know the IP address of ESP32 on the local network(without printing ip on serial monitor ). The idea is to do mDNS or UDP broadcast to send the IP to the android application. The app will then use that IP to do the communication. Is there someone who has already done it?
Maybe a bit late, but nevertheless:
The function called "tcpip_adapter_get_ip_info" can be used to obtain your interface IP address, netmask and gateway. You can pass in TCPIP_ADAPTERE_IF_STA to get the information you desire.
#include <tcpip_adapter.h>
tcpip_adapter_ip_info_t ipInfo;
char str[256];
tcpip_adapter_get_ip_info(TCPIP_ADAPTER_IF_STA, &ipInfo);
sprintf(str, "%x", ipInfo.ip.addr);
Note that it is also given in the event handler:
case SYSTEM_EVENT_STA_GOT_IP:
eprintf(eLOG_EVENTQ,"IP: %s\r\n",
ip4addr_ntoa(&event>event_info.got_ip.ip_info.ip));
If you're looking to identify your ESP32 easily on the local network, you can simply use the mDNS service.
This will make your ESP32 accessible via user friendly hostname.
Example: myesp32.local
I have microcontroller pic16f887 and serial ethernet board. When start browser i have problem - the message is this site can't be reached and i can show the content in browser. What may be the problem???? I use HTTPServerExample
http://www.mikroe.com/add-on-boards/communication/serial-ethernet/
Is the IP address configured correct? Wireshark is a very nice tool you can run on your PC to track the TCP/IP traffic and try to detect what goes wrong.
I would like to develop my own modem for a custom communication network that will be detectable on the serial port by PC automatically. What I'm uncertain about is the protocol part of the AT commands and how to make it work seamlessly so that computer will detect the modem automatically.
I plan to use ftdi UART to USB converter to interface my microcontroller with the PC using standard serial interface. The PC will then use AT commands to communicate with the microcontroller that will in turn connect to another microcontroller over radio tranceiver and establish a two way serial connection over radio. The idea is that the PC on the other end will run PPPD and listen on it's own modem connection for incoming call and then bridge the connection with it's other internet interface that is connected to internet. The first computer will get it's own IP address using PPPD and will be connected to internet over this custom microcontroller based modem.
But how do I implement the communication protocol between my controller and PC? What commands do I absolutely need to implement? How do I make sure that the computer recognises my controller which is connected over ftdi usb to serial adapter as a functional modem?
Where can I find a speciffication of the minimum command set that is required of a modem?
In practice linux usually discovers a 3G modem automatically for example. Does that have to do with the actual USB identifier of the modem? Is it possible to have linux automatically discover an ordinary serial port modem? I'm thinking that the modem will be sending an AT idle ping repeatedly when it's plugged in so that linux should be able to detect it.
Hi i'm trying to access my wifi shield's ip address on the browser but I keep getting Oops! Google Chrome could not connect to "IP ADDRESS".
Things I've done:
1.)Updated firmware on wifi shield using this link http://ohmyfarads.com/2013/11/11/updating-firmware-on-arduino-wifi-shield-for-dummies/
2.) uploaded the wifi WPA sketch from arduino site. My connection is WPA2
3.) I switched between arduino IDE 1.02 and 1.05 but no luck with either
4.) I'm using an arduino uno board that is attached to wifi shield
Help? Thanks!
This might be caused by incorrect router setup. Things you should look at:
1.You may have to first add device mac address to router list and assign it to the specific IP address you want to have.
2.The second option is that router may give his own address to this device by DHCP.
Remember that you have to choose nonroutable IP address for your shield. IP also has to be in your home address range. The simplest way to check that is:
1.Manu Start
2.Launch and type (or type in search) cmd
3.In console type "ipconfig"
Your local IP is in IPv4 .......... 192.168.x.x (most likely)
(in this case shield should have address like (192.168.x.y).
For more information about IP [look here][1]
You can also use Netscan tool to find out if shield is in your LAN.
I hope it will be helpful.