Outbound URL of Imp device (Firewall restrictions)


#1

Dear master,

I am testing the Imp product in my company.
But after blinking, the device is not connected to the Internet.
My company’s network is using a firewall.
So I added 31314, 993, 443, and 80 port but it is not enough.
(https://developer.electricimp.com/troubleshooting/networks)
I also need to add the destination URL of Imp.
Can you tell me about that?


#2

If your company can look at outbound DNS and use this to open ports in the firewall, then *.electricimp.com will work - however, most firewalls require specific IP addresses, which we cannot provide because there are many servers and their addresses change at every deploy.

Other alternatives:

  • imp supports HTTP CONNECT proxies. Does your company offer this? Blinkup can send proxy credentials to use these.
  • we have proxies for commercial customers that allow connections to be whitelisted to a small number of IP addresses. This is not ideal for resilience, but better than nothing in situations with extreme restrictions. Email sales@electricimp.com if you need this for testing in your organization.

#3

OK, I’ll try to that. Thanks.