Find IP address

Web
1

What’s a way in Xojo for a program to:
a. find the IP address of the computer the app is running on
b. find the “outside world” IP address (on the “other side” of the router)

2

a) you can get away with just creating a new TCP Socket and reading the local address
You dont need to connect or anything

b) usually requires a service on the other side of the router that can look back at a request and say “your IP is …”

services like https://www.whatsmyip.org/

1 Like
3

is there a way to get your public ip address without any web service ?
as many of them are prone to dissapear sooner or later
using arp shell commands or something like that ?

4

possibly query your router for its external ip address

5

I would like to stay independant of the router.
I know my public ip address I don’t need any program to that !
I want to implement it in a xojo program, cross platform and rweb service and router independant … if possible.

6

I’ll probably just use ipify. Hopefully it’s not going anywhere soon.

7

short of asking the router or an external service I dont know of a way to get your public ip address

8

Here is the code I use:

#If TargetDesktop Or TargetWeb Then
  Var pubip As String
  Var sck As New HTTPSocket
  
  Try
    Var js As New JSONItem(sck.Get("http://ipinfo.io/json", 10))
    If js.hasname("ip") Then pubip = js.value("ip")   
    
  Catch RuntimeException
    pubip = ""
  End Try
  
  If sck <> Nil Then sck = Nil
  Return pubip
#EndIf
1 Like
9

ipinfo.io sounds like it’s the same sort of service as the one I mentioned, ipify.org.
I guess if one fails you can try the other! :wink:

10

having a list of several you can try if one fails is probably prudent