Ping ip address

[Mantorok]

Hi all

I want to ping an ipaddress/host to check for a response.

Is there any easy way in C#/.Net to do this?

Thanks
Kev

[Dennis Myrén]

You could perform a request and check whether you get anything back.
public static bool Ping ( string url )
{
WebRequest r = WebRequest.Create(url);
try
{
r.GetResponse();
return true;
}
catch
{
}
return false;
}

--
Regards,
Dennis JD Myrén
Oslo Kodebureau
"Mantorok" <no**@tiscali.co.uk> wrote in message
news:cn**********@newsfeed.th.ifl.net...

Hi all

I want to ping an ipaddress/host to check for a response.

Is there any easy way in C#/.Net to do this?

Thanks
Kev

[sloppycode]

http://www.google.co.uk/search?q=ping+c%23 if none of them are anygood,
i can give you one I've got chris at sloppycode . net

[Mantorok]

Hi Dennis

That appeared promising but fails with the the message "Access to the path
is denied", I'm trying to check if another pc on the network is available,
basically checking the \\pcname\c$ share.

I do have access to the machine as I can browse to the shaire, however,
WebRequest failes with that exception message.

Any ideas?

"Dennis Myrén" <de****@oslokb.no> wrote in message
news:n5********************@news4.e.nsc.no...

You could perform a request and check whether you get anything back.
public static bool Ping ( string url )
{
WebRequest r = WebRequest.Create(url);
try
{
r.GetResponse();
return true;
}
catch
{
}
return false;
}

--
Regards,
Dennis JD Myrén
Oslo Kodebureau
"Mantorok" <no**@tiscali.co.uk> wrote in message
news:cn**********@newsfeed.th.ifl.net...

Hi all

I want to ping an ipaddress/host to check for a response.

Is there any easy way in C#/.Net to do this?

Thanks
Kev

[Nicholas Paldino [.NET/C# MVP]]

Mantorok,

Why not just try and open the share up? You can check for the existence
through the Exists methods on the DirectoryInfo and Directory classes.

And if you get an access denied error, then it means that you shouldn't
be trying to get to that share in the first place.

The first task would be to see if you have access to the path you want
to access. If you don't, then everything else is moot.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com
"Mantorok" <no**@tiscali.co.uk> wrote in message
news:cn**********@newsfeed.th.ifl.net...

Hi Dennis

That appeared promising but fails with the the message "Access to the path
is denied", I'm trying to check if another pc on the network is
available,
basically checking the \\pcname\c$ share.

I do have access to the machine as I can browse to the shaire, however,
WebRequest failes with that exception message.

Any ideas?

"Dennis Myrén" <de****@oslokb.no> wrote in message
news:n5********************@news4.e.nsc.no...

You could perform a request and check whether you get anything back.
public static bool Ping ( string url )
{
WebRequest r = WebRequest.Create(url);
try
{
r.GetResponse();
return true;
}
catch
{
}
return false;
}

--
Regards,
Dennis JD Myrén
Oslo Kodebureau
"Mantorok" <no**@tiscali.co.uk> wrote in message
news:cn**********@newsfeed.th.ifl.net...

> Hi all
>
> I want to ping an ipaddress/host to check for a response.
>
> Is there any easy way in C#/.Net to do this?
>
> Thanks
> Kev
>
>

[Dennis Myrén]

I was hoping it could be done using the Credentials property:
r.Credentials = new System.Net.NetworkCredential
("username", "password", "domain");
but unfortunately, it does not seem to be enough.

You might want to have a look at:
http://www.netomatix.com/ImpersonateUser.aspx
--
Regards,
Dennis JD Myrén
Oslo Kodebureau
"Mantorok" <no**@tiscali.co.uk> wrote in message
news:cn**********@newsfeed.th.ifl.net...

Hi Dennis

That appeared promising but fails with the the message "Access to the path
is denied", I'm trying to check if another pc on the network is
available,
basically checking the \\pcname\c$ share.

I do have access to the machine as I can browse to the shaire, however,
WebRequest failes with that exception message.

Any ideas?

"Dennis Myrén" <de****@oslokb.no> wrote in message
news:n5********************@news4.e.nsc.no...

You could perform a request and check whether you get anything back.
public static bool Ping ( string url )
{
WebRequest r = WebRequest.Create(url);
try
{
r.GetResponse();
return true;
}
catch
{
}
return false;
}

--
Regards,
Dennis JD Myrén
Oslo Kodebureau
"Mantorok" <no**@tiscali.co.uk> wrote in message
news:cn**********@newsfeed.th.ifl.net...

> Hi all
>
> I want to ping an ipaddress/host to check for a response.
>
> Is there any easy way in C#/.Net to do this?
>
> Thanks
> Kev
>
>

[Mantorok]

Nicholas

I would use the Directory.Exists but it takes around 2 mins if the pc is not
connected, which is unacceptable.

The access-denied error is also incorrect, as I do have access to it.

Kev

"Nicholas Paldino [.NET/C# MVP]" <mv*@spam.guard.caspershouse.com> wrote in
message news:uN**************@TK2MSFTNGP11.phx.gbl...

Mantorok,

Why not just try and open the share up? You can check for the existence through the Exists methods on the DirectoryInfo and Directory classes.

And if you get an access denied error, then it means that you shouldn't be trying to get to that share in the first place.

The first task would be to see if you have access to the path you want
to access. If you don't, then everything else is moot.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com
"Mantorok" <no**@tiscali.co.uk> wrote in message
news:cn**********@newsfeed.th.ifl.net...

Hi Dennis

That appeared promising but fails with the the message "Access to the path is denied", I'm trying to check if another pc on the network is
available,
basically checking the \\pcname\c$ share.

I do have access to the machine as I can browse to the shaire, however,
WebRequest failes with that exception message.

Any ideas?

"Dennis Myrén" <de****@oslokb.no> wrote in message
news:n5********************@news4.e.nsc.no...

You could perform a request and check whether you get anything back.
public static bool Ping ( string url )
{
WebRequest r = WebRequest.Create(url);
try
{
r.GetResponse();
return true;
}
catch
{
}
return false;
}

--
Regards,
Dennis JD Myrén
Oslo Kodebureau
"Mantorok" <no**@tiscali.co.uk> wrote in message
news:cn**********@newsfeed.th.ifl.net...
> Hi all
>
> I want to ping an ipaddress/host to check for a response.
>
> Is there any easy way in C#/.Net to do this?
>
> Thanks
> Kev
>
>

[Nicholas Paldino [.NET/C# MVP]]

Mantorok,

If you want to ping the machine, then I would actually try to ping the
machine then. You should be able to resolve the IP, and then just ping
normally (like you would any other network host). You can use the libraries
at the indy project to do this.

However, this assumes that the machines are servicing ping requests.

As for having access, you might have access to certain things on the
machine, but whatever it is on that machine you want to access, you don't
have access to (assuming that you can reach the machine).
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Mantorok" <no**@tiscali.co.uk> wrote in message
news:cn**********@newsfeed.th.ifl.net...

Nicholas

I would use the Directory.Exists but it takes around 2 mins if the pc is
not
connected, which is unacceptable.

The access-denied error is also incorrect, as I do have access to it.

Kev

"Nicholas Paldino [.NET/C# MVP]" <mv*@spam.guard.caspershouse.com> wrote
in
message news:uN**************@TK2MSFTNGP11.phx.gbl...

Mantorok,

Why not just try and open the share up? You can check for the

existence

through the Exists methods on the DirectoryInfo and Directory classes.

And if you get an access denied error, then it means that you

shouldn't

be trying to get to that share in the first place.

The first task would be to see if you have access to the path you
want
to access. If you don't, then everything else is moot.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com
"Mantorok" <no**@tiscali.co.uk> wrote in message
news:cn**********@newsfeed.th.ifl.net...

> Hi Dennis
>
> That appeared promising but fails with the the message "Access to the path > is denied", I'm trying to check if another pc on the network is
> available,
> basically checking the \\pcname\c$ share.
>
> I do have access to the machine as I can browse to the shaire, however,
> WebRequest failes with that exception message.
>
> Any ideas?
>
> "Dennis Myrén" <de****@oslokb.no> wrote in message
> news:n5********************@news4.e.nsc.no...
>> You could perform a request and check whether you get anything back.
>> public static bool Ping ( string url )
>> {
>> WebRequest r = WebRequest.Create(url);
>> try
>> {
>> r.GetResponse();
>> return true;
>> }
>> catch
>> {
>> }
>> return false;
>> }
>>
>> --
>> Regards,
>> Dennis JD Myrén
>> Oslo Kodebureau
>> "Mantorok" <no**@tiscali.co.uk> wrote in message
>> news:cn**********@newsfeed.th.ifl.net...
>> > Hi all
>> >
>> > I want to ping an ipaddress/host to check for a response.
>> >
>> > Is there any easy way in C#/.Net to do this?
>> >
>> > Thanks
>> > Kev
>> >
>> >
>>
>>
>
>

[Nick Malik]

Hi Kev,

It isn't at all clear what you mean by "check to see if the machine is
available." Available for what?
I'm guessing that you just want to make sure that the machine responds on
the network, so that you can do another task, like open the directory,
without the fear of it taking a long time if that machine is not actually
available.

In that case, and assuming that the other machine is set to respond to a
ICMP request, there is nothing wrong with using Ping.

There are a large number of third party libraries available that implement
the ICMP protocol. In the past, I've been happy with products from Mabry,
and they have a ping control for about $100.

Or, you could roll your own (although probably not in less than a few hours
(?), depending on how much your time is worth).

--- Nick

"Mantorok" <no**@tiscali.co.uk> wrote in message
news:cn**********@newsfeed.th.ifl.net...

Hi Dennis

That appeared promising but fails with the the message "Access to the path
is denied", I'm trying to check if another pc on the network is available, basically checking the \\pcname\c$ share.

I do have access to the machine as I can browse to the shaire, however,
WebRequest failes with that exception message.

Any ideas?

"Dennis Myrén" <de****@oslokb.no> wrote in message
news:n5********************@news4.e.nsc.no...

You could perform a request and check whether you get anything back.
public static bool Ping ( string url )
{
WebRequest r = WebRequest.Create(url);
try
{
r.GetResponse();
return true;
}
catch
{
}
return false;
}

--
Regards,
Dennis JD Myrén
Oslo Kodebureau
"Mantorok" <no**@tiscali.co.uk> wrote in message
news:cn**********@newsfeed.th.ifl.net...

Hi all

I want to ping an ipaddress/host to check for a response.

Is there any easy way in C#/.Net to do this?

Thanks
Kev

[Mantorok]

The idea is to ping the machine programmtically, there may be 10-15 laptops
that I need to check are on the network.

I have adminstrator rights to all of these machines, so there is nothing I
can't do on them, all I want to do here is merely check for their existence
on the network.

Kev

"Nicholas Paldino [.NET/C# MVP]" <mv*@spam.guard.caspershouse.com> wrote in
message news:ej**************@TK2MSFTNGP11.phx.gbl...

Mantorok,

If you want to ping the machine, then I would actually try to ping the
machine then. You should be able to resolve the IP, and then just ping
normally (like you would any other network host). You can use the libraries at the indy project to do this.

However, this assumes that the machines are servicing ping requests.

As for having access, you might have access to certain things on the
machine, but whatever it is on that machine you want to access, you don't
have access to (assuming that you can reach the machine).
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Mantorok" <no**@tiscali.co.uk> wrote in message
news:cn**********@newsfeed.th.ifl.net...

Nicholas

I would use the Directory.Exists but it takes around 2 mins if the pc is
not
connected, which is unacceptable.

The access-denied error is also incorrect, as I do have access to it.

Kev

"Nicholas Paldino [.NET/C# MVP]" <mv*@spam.guard.caspershouse.com> wrote
in
message news:uN**************@TK2MSFTNGP11.phx.gbl...

Mantorok,

Why not just try and open the share up? You can check for the

existence

through the Exists methods on the DirectoryInfo and Directory classes.

And if you get an access denied error, then it means that you

shouldn't

be trying to get to that share in the first place.

The first task would be to see if you have access to the path you
want
to access. If you don't, then everything else is moot.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com
"Mantorok" <no**@tiscali.co.uk> wrote in message
news:cn**********@newsfeed.th.ifl.net...
> Hi Dennis
>
> That appeared promising but fails with the the message "Access to the

path

> is denied", I'm trying to check if another pc on the network is
> available,
> basically checking the \\pcname\c$ share.
>
> I do have access to the machine as I can browse to the shaire, however, > WebRequest failes with that exception message.
>
> Any ideas?
>
> "Dennis Myrén" <de****@oslokb.no> wrote in message
> news:n5********************@news4.e.nsc.no...
>> You could perform a request and check whether you get anything back.
>> public static bool Ping ( string url )
>> {
>> WebRequest r = WebRequest.Create(url);
>> try
>> {
>> r.GetResponse();
>> return true;
>> }
>> catch
>> {
>> }
>> return false;
>> }
>>
>> --
>> Regards,
>> Dennis JD Myrén
>> Oslo Kodebureau
>> "Mantorok" <no**@tiscali.co.uk> wrote in message
>> news:cn**********@newsfeed.th.ifl.net...
>> > Hi all
>> >
>> > I want to ping an ipaddress/host to check for a response.
>> >
>> > Is there any easy way in C#/.Net to do this?
>> >
>> > Thanks
>> > Kev
>> >
>> >
>>
>>
>
>