HttpListenerException when trying to listen to non-localhost target
0
I am trying to listen to a certain endpoint, using the following code:
string url = "http://111.111.1.11:8080/";
HttpListener listener = new HttpListener();
listener.Prefixes.Add(url);
listener.Start();
listener.Start() throws HttpListenerException: 'The format of the specified network name is invalid'
Researching the problem I tried the following solutions with no luck:
- Disabling firewall entirely
- Adding the url to listen list, and to urlacl using netsh http add commands (both of them)
Worth mentioning that the listener does work when i change the url to localhost.
Could there be some kind of constraints I am not aware of in my network?
Appreciate any help!
c# http listener httplistener
asked Nov 12 '18 at 15:22
oren koren k
83
|
show 3 more comments
0
I am trying to listen to a certain endpoint, using the following code:
string url = "http://111.111.1.11:8080/";
HttpListener listener = new HttpListener();
listener.Prefixes.Add(url);
listener.Start();
listener.Start() throws HttpListenerException: 'The format of the specified network name is invalid'
Researching the problem I tried the following solutions with no luck:
- Disabling firewall entirely
- Adding the url to listen list, and to urlacl using netsh http add commands (both of them)
Worth mentioning that the listener does work when i change the url to localhost.
Could there be some kind of constraints I am not aware of in my network?
Appreciate any help!
c# http listener httplistener
asked Nov 12 '18 at 15:22
oren koren k
83
1
Is that IP address present on your machine? IE does it show up when you run ipconfig?
– David Browne - Microsoft
Nov 12 '18 at 15:30
@DavidBrowne-Microsoft yes, it's a different IP in my solution that responds to pings and shows up in browsers
– oren k
Nov 12 '18 at 15:32
But is it an IP on the machine where you're running that code?
– David Browne - Microsoft
Nov 12 '18 at 15:37
@DavidBrowne-Microsoft it's an IP of a PC in my LAN
– oren k
Nov 12 '18 at 15:51
1
Then you're using the wrong type. HttpListener is for listening to incoming HTTP requests on one (or all) of your local IPs. You can't listen on another PC's IP address. You can use WebClient to send request to an HTTP Listener running on that PC. docs.microsoft.com/en-us/dotnet/api/…
– David Browne - Microsoft
Nov 12 '18 at 15:53
|
show 3 more comments
0
0
0
I am trying to listen to a certain endpoint, using the following code:
string url = "http://111.111.1.11:8080/";
HttpListener listener = new HttpListener();
listener.Prefixes.Add(url);
listener.Start();
listener.Start() throws HttpListenerException: 'The format of the specified network name is invalid'
Researching the problem I tried the following solutions with no luck:
- Disabling firewall entirely
- Adding the url to listen list, and to urlacl using netsh http add commands (both of them)
Worth mentioning that the listener does work when i change the url to localhost.
Could there be some kind of constraints I am not aware of in my network?
Appreciate any help!
c# http listener httplistener
asked Nov 12 '18 at 15:22
oren koren k
83
I am trying to listen to a certain endpoint, using the following code:
string url = "http://111.111.1.11:8080/";
HttpListener listener = new HttpListener();
listener.Prefixes.Add(url);
listener.Start();
listener.Start() throws HttpListenerException: 'The format of the specified network name is invalid'
Researching the problem I tried the following solutions with no luck:
- Disabling firewall entirely
- Adding the url to listen list, and to urlacl using netsh http add commands (both of them)
Worth mentioning that the listener does work when i change the url to localhost.
Could there be some kind of constraints I am not aware of in my network?
Appreciate any help!
c# http listener httplistener
c# http listener httplistener
asked Nov 12 '18 at 15:22
oren koren k
83
asked Nov 12 '18 at 15:22
oren koren k
83
asked Nov 12 '18 at 15:22
oren koren k
83
asked Nov 12 '18 at 15:22
oren koren k
83
asked Nov 12 '18 at 15:22
oren koren k
83
83
1
Is that IP address present on your machine? IE does it show up when you run ipconfig?
– David Browne - Microsoft
Nov 12 '18 at 15:30
@DavidBrowne-Microsoft yes, it's a different IP in my solution that responds to pings and shows up in browsers
– oren k
Nov 12 '18 at 15:32
But is it an IP on the machine where you're running that code?
– David Browne - Microsoft
Nov 12 '18 at 15:37
@DavidBrowne-Microsoft it's an IP of a PC in my LAN
– oren k
Nov 12 '18 at 15:51
1
Then you're using the wrong type. HttpListener is for listening to incoming HTTP requests on one (or all) of your local IPs. You can't listen on another PC's IP address. You can use WebClient to send request to an HTTP Listener running on that PC. docs.microsoft.com/en-us/dotnet/api/…
– David Browne - Microsoft
Nov 12 '18 at 15:53
|
show 3 more comments
1
Is that IP address present on your machine? IE does it show up when you run ipconfig?
– David Browne - Microsoft
Nov 12 '18 at 15:30
@DavidBrowne-Microsoft yes, it's a different IP in my solution that responds to pings and shows up in browsers
– oren k
Nov 12 '18 at 15:32
But is it an IP on the machine where you're running that code?
– David Browne - Microsoft
Nov 12 '18 at 15:37
@DavidBrowne-Microsoft it's an IP of a PC in my LAN
– oren k
Nov 12 '18 at 15:51
1
Then you're using the wrong type. HttpListener is for listening to incoming HTTP requests on one (or all) of your local IPs. You can't listen on another PC's IP address. You can use WebClient to send request to an HTTP Listener running on that PC. docs.microsoft.com/en-us/dotnet/api/…
– David Browne - Microsoft
Nov 12 '18 at 15:53
1
1
Is that IP address present on your machine? IE does it show up when you run ipconfig?
– David Browne - Microsoft
Nov 12 '18 at 15:30
Is that IP address present on your machine? IE does it show up when you run ipconfig?
– David Browne - Microsoft
Nov 12 '18 at 15:30
@DavidBrowne-Microsoft yes, it's a different IP in my solution that responds to pings and shows up in browsers
– oren k
Nov 12 '18 at 15:32
@DavidBrowne-Microsoft yes, it's a different IP in my solution that responds to pings and shows up in browsers
– oren k
Nov 12 '18 at 15:32
But is it an IP on the machine where you're running that code?
– David Browne - Microsoft
Nov 12 '18 at 15:37
But is it an IP on the machine where you're running that code?
– David Browne - Microsoft
Nov 12 '18 at 15:37
@DavidBrowne-Microsoft it's an IP of a PC in my LAN
– oren k
Nov 12 '18 at 15:51
@DavidBrowne-Microsoft it's an IP of a PC in my LAN
– oren k
Nov 12 '18 at 15:51
1
1
Then you're using the wrong type. HttpListener is for listening to incoming HTTP requests on one (or all) of your local IPs. You can't listen on another PC's IP address. You can use WebClient to send request to an HTTP Listener running on that PC. docs.microsoft.com/en-us/dotnet/api/…
– David Browne - Microsoft
Nov 12 '18 at 15:53
Then you're using the wrong type. HttpListener is for listening to incoming HTTP requests on one (or all) of your local IPs. You can't listen on another PC's IP address. You can use WebClient to send request to an HTTP Listener running on that PC. docs.microsoft.com/en-us/dotnet/api/…
– David Browne - Microsoft
Nov 12 '18 at 15:53
|
show 3 more comments
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1
Is that IP address present on your machine? IE does it show up when you run ipconfig?
– David Browne - Microsoft
Nov 12 '18 at 15:30
@DavidBrowne-Microsoft yes, it's a different IP in my solution that responds to pings and shows up in browsers
– oren k
Nov 12 '18 at 15:32
But is it an IP on the machine where you're running that code?
– David Browne - Microsoft
Nov 12 '18 at 15:37
@DavidBrowne-Microsoft it's an IP of a PC in my LAN
– oren k
Nov 12 '18 at 15:51
1
Then you're using the wrong type. HttpListener is for listening to incoming HTTP requests on one (or all) of your local IPs. You can't listen on another PC's IP address. You can use WebClient to send request to an HTTP Listener running on that PC. docs.microsoft.com/en-us/dotnet/api/…
– David Browne - Microsoft
Nov 12 '18 at 15:53