udpclient socket help ?

Question

please help me to resolve this problem 

i need to connect with udp client at @ 127.0.0.1 and the port 514 (syslog server)

but when i compile my program this exception appears :

<<<" Une exception non gérée du type 'System.Net.Sockets.SocketException' s'est produite dans System.dll
Informations supplémentaires : Une seule utilisation de chaque adresse de socket (protocole/adresse réseau/port) est habituellement autorisée">>>

 i use c# language

Answer 1

What is the line that gives you this error?

---

Marco Minerva [MCPD]
Blog: http://blogs.ugidotnet.org/marcom
Twitter: @marcominerva

Answer 2

the line in my code :

public void Receivepacket(param) {

......

UdpClient udpcli = new UdpClient(514);// this line when error appears

.....

}

Answer 3

The problem is the initialization itself. You already have a program on your computer running which bound a socket to the port 514. Therefore this port is used. When you want to connect to that port you need to bind the port in the client application to another port and use this socket to connect to port 514.