I have a websocket server running on a pc connected to the pc through a switch.
When I make a websocket client in the HoloLens with the IP of the server it doesn't connect. How come? I cannot ping the HoloLens emulator from the pc with the server but I can ping the pc running the emulator.
By default all interactions with the emulator are done through a 169.254.xxx.xxx address. This address is not externally routable. If you go to the networking menu option in the web portal for the emulator you should see two network adapters, one is the 169.254.xxx.xxx address and another is an address assigned via dhcp. My guess is that you don't have a second adapter and need to fix that in your Hyper V configuration for the emulator. If you do have that second adapter pinging that address will not work, because HoloLens does not run and ICMP server to respond to pings. A better test is to open Internet Explorer in the emulator and attempt to go to a valid web server address on your network. Here is what my settings look like as an example:
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I recently made a very basic TCP server application in C++ and Python using the very basic socket API. The client server connection happens flawlessly within the localhost as well as inside my LAN (within the same Wi-fi). But If I connect my client to an internet service (WAN) and try to connect to my server application behind my wifi (using the Wi-fi's public IP (provided by its ISP) and the port on which my server will be listening to) , I'm unable to get a connection. The server sits idle waiting for a connection ! I have enabled port forwarding on my Wi-fi, but still the results are all vain...
**EDIT: **
I managed to connect them over WAN, but now the ISP have to be the same... This is what I did: I made the server run on my Android device, bound it to the IP of my device that uses mobile data... The client sits behind a WiFi and connects to the Server using the previously mentioned IP and everything works fine ! But however if the client becomes an android app in another device with mobile data provided by different ISP everything fails !!! * So long as client runs behind a WiFi, but server connected to WAN (same ISP) the system works. *
I am having some trouble allowing my 2wire router (provided by AT&T to forward certain ports.
I have a raspberry pi running subsonic (a music server) and I would like to access it from the outside internet. I have configured the pi with a static LAN IP address and have opened the specified ports (4040 and 80) on both TCP and UDP. I have also confirmed the service is active and is listening on the specified ports via netstat.
When I attempt to connect, however, from my WAN IP I am confronted with a connection refused dialog. Checking the firewall logs on my router, I see this message
IN=br1 MAC=--:--:--:--:--:-- SRC=(my computer IP) DST=(My WAN IP) LEN=40 TTL=240 PROTO=TCP DPT=5060 Unknown inbound session stopped
It appears that my firewall is still blocking the external connection. What strikes me as odd is, although I am unable to connect I can still see that the port is open from an outside port scanner. Using the service provided from http://www.yougetsignal.com/tools/open-ports/ I have confirmed that my IP has port 4040 to be open.
Once again, I have confirmed that the service is indeed listening on the raspberry pi, setup a static LAN address and created the protocol for both TCP and UDP....
Any help on this matter would be greatly appreciated.
Thanks in advance!
Ok so for whatever reason it was working all along. Apparently it was just getting confused by me trying to connect to my own router. I confirmed this by connecting to the server via 4G on my phone.
Dumb mistake by me.
Trying to connect to localhost on my development machine with my iPad using wifi.
The webserver integrated in Visual studio.
Using ip number I get from ipconfig.
192.168.1.84:1144
I'm receiving http 400 error.
I've added port 1144 as TCP/IP port on firewall.
Anybody knows what I'm doing wrong?
does your machine have a static IP? with DHCP enabled, the ip of your machine keeps changing every now and then, so it might be the case that the address provided is no longer available!!
disconnect and reconnect to your network, then run ipconfig again and check if the IP has changed, if it has, then DHCP is enabled...
I'm working on a website for a friend, developing using Eclipse/Tomcat. I'm running it locally and trying to open it via my internet port IP address, but I can't get it to work. The computer I am running it from is connected to a router, so it is running off of 192.168.1.4, and http://192.168.1.4:8080/Mobile_Site/index.jsp works. However when I try and open it via my internet port IP, http://67.xxx.244.xx:8080/Mobile_Site/index.jsp it doesn't find it from any device, even outside my local network. Is there a way to send the link when running locally when connected to a router?
You have to configure your router port forwarding (or virtual servers depending on the router) to forward TCP connections from 67.xxx.244.xx:NNNN to 192.168.1.4:8080.
Then you give the 67.xxx.244.xx:NNNN address to your friend.
Note: NNNN at your router doesn't need to be 8080, as long as the port forwarding is set properly.
This is my application setup.
I have written an application (in Qt ) which will run on a linux computer (Ubuntu). The application accepts requests from web app and sends them to a serial device that is connected to the computer. Also application will send back the response to web app as well. This linux computer is connected to internet via wifi router.
Now my question is, Is there a way (other than port forwarding in wifi router) that I can achieve this functionality. Using port forwarding I can ask the router to forward the requests coming for a particular port to my computer at a particular port and my application would be listening for that. But for that I would have to configure the router and I don't want to do that. Is there a way I can do that automatically?
Thanks,
DPatel
Your issue is traversing non-routable NAT addresses.
UPNP is an option: http://en.wikipedia.org/wiki/Universal_Plug_and_Play
It will automatically configure port forwarding.
There is a library out there called STUNT for this as well:
http://nutss.gforge.cis.cornell.edu/stunt.php