Antwort: Q: Snmp++ traps

[Frank Fock]

Hi Manjunath,

The IP address of the notification originator ist NOT part of
the SNMPv2 trap PDU (i.e., notification).
Thus, a manager can only determine the sender's IP address
by asking its transport layer. So, in your case, I assume, the agent
has sent the trap from the localhost to a manager on the same
host.

Best regards,
Frank




|--------+----------------------------->
|        |          "manjunath ramaiah |
|        |          "                  |
|        |          <manjunath.ramaiah@|
|        |          wipro.com>         |
|        |                             |
|        |          08.10.00 20:35     |
|        |                             |
|--------+----------------------------->
  >----------------------------------------------------------------------------|
  |                                                                            |
  |       An:     agentpp-dl at fock.de                                           |
  |       Kopie:  (Blindkopie: Frank Fock/MAIN/MC1)                            |
  |       Thema:  Q: Snmp++ traps                                              |
  >----------------------------------------------------------------------------|






Hi ,
 I am using snmp++ to send the traps( Snmp::trap() function) . I have
this problem .

I am not setting the address of the agent  which is sending the trap in
the pdu  in my code . On Receiving the trap , in the Manager side the
instead of displaying the agent ipaddress it is displaying as 'local
host ' .The source addr  in
the trap pdu is 0. I looked into snmp++ code , SnmpMessage::load()
function is placing the agent addr by making  gethostname function . But
this code is in the
IF condition and it is done for V1 traps only .

How to make the trap pdu to contain the ipaddr of the M/C sending the
trap ?