how to get IPaddress's long value

[Ryan Liu]

Hi,

Can someone tell me how to calculate an IPaddress's long value?

I have an application which lisiten on a port using UDP protocol. There
could be multiple client sendind UDP data to it and I am only interested
data from one client, I know that client's IP address in form of 127.0.0.1
etc.

I think I need convert that IP into IPaddress then can compare with
parameter in
UdpServer.Recei ve(ref remoteIpEndPoin t);

Thanks a lot in advance!
Ryan

[Ollie Riches]

have you check out the IPAdress class in the framework it has a some
functions for manipulating address:

System.IPAddres s

Hope this helps

Ollie Riches

"Ryan Liu" <ad********@onl ine.sh.cnwrote in message
news:%2******** ********@TK2MSF TNGP04.phx.gbl. ..

Hi,

Can someone tell me how to calculate an IPaddress's long value?

I have an application which lisiten on a port using UDP protocol. There
could be multiple client sendind UDP data to it and I am only interested
data from one client, I know that client's IP address in form of 127.0.0.1
etc.

I think I need convert that IP into IPaddress then can compare with
parameter in
UdpServer.Recei ve(ref remoteIpEndPoin t);

Thanks a lot in advance!
Ryan

[Samuel R. Neff]

Use IPAddress.Parse .
public static void Receive(ref IPEndPoint remoteEndPoint) {
IPAddress target = IPAddress.Parse ("127.0.0.1" );
if (!remoteEndPoin t.Address.Equal s(target)) {
return;
}
// rest of method here
}
Of course you should cache the target endpoint and not parse it every
time, but the above explains what's needed.

HTH,

Sam
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"Ryan Liu" <ad********@onl ine.sh.cnwrote in message
news:%2******** ********@TK2MSF TNGP04.phx.gbl. ..

Hi,

Can someone tell me how to calculate an IPaddress's long value?

I have an application which lisiten on a port using UDP protocol. There
could be multiple client sendind UDP data to it and I am only interested
data from one client, I know that client's IP address in form of 127.0.0.1
etc.

I think I need convert that IP into IPaddress then can compare with
parameter in
UdpServer.Recei ve(ref remoteIpEndPoin t);

Thanks a lot in advance!
Ryan