Hi Diago,
You are trying to send a packet to the port you are trying to listen on.
As long as there is another process bound to that port (the snmp service
of your OS), this will fail.
You will have to use a different listen address (e.g. "udp:0.0.0.0/0")
to make this working.
Regards,
Frank
Diogo Vasconcellos wrote:
Hi,
I'm using SNMP4J v 1.9.3c, and every time I run my code I'm getting a
java.net.BindException: Address already in use: Cannot bind. The weird thing
is that yesterday it ran OK when querying 127.0.0.1/161. I'm using Windows
XP, and its own SNMP service.
How could I solve that, or find the answer? What am I doing wrong?
Here's my code (the SNMP part)
public static String testaOID (String endereco, String oid, String
community)
{
String resultado = null;
// PDU.
PDU pdu = new PDU();
pdu.add(new VariableBinding(new OID(oid))); // sysDescr
pdu.setType(PDU.GETNEXT);
// Target
CommunityTarget target = new CommunityTarget();
target.setCommunity(new OctetString(community));
target.setAddress(new UdpAddress(endereco));
target.setVersion(SnmpConstants.version2c);
System.out.println(target.toString());
ResponseEvent response = null;
Snmp snmp = null;
// connection
try
{
// SNMP instance
snmp = new Snmp ( new DefaultUdpTransportMapping (new
UdpAddress(endereco) ) );
System.out.println(snmp.toString());
snmp.listen();
}
catch (Exception e)
{
System.out.println("1 - "+e.toString());
}
try
{
response = snmp.send(pdu, target);
}
catch ( Exception e )
{
System.out.println("2 - "+e.toString());
}
try
{
// timeout...
if (response.getResponse() == null)
{
System.out.println("TIMEOUT");
}
else {
// returns response
System.out.println("Received response from: "+
response.getPeerAddress());
// dump response PDU
resultado = response.getResponse().toString();
}
} catch ( Exception e)
{
System.out.println("3 - "+e.toString());
}
// returns response
return resultado;
}
Sincere thanks,
Diogo Vasconcellos
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