problem in sending more than one trap

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Hi,

I had written a code which sends the trap if host-name is changed.
the code is working fine for the first time, but when we try to change the
host-name for the second time
we get the error :

"No support for any checked transport domain"
snmptrap: unknown host (127.0.0.1)

In main ()
The code is to check the hostname from proc file, infinitely in while loop
and as soon as it detects the change a trap function is called.
In trap(),
We are mainly initializing the session , opening the session, creating pdu,
sending the pdu(trap) n closing the session.
main commands used for the above are:
snmp_open
snmp_pdu_create(SNMP_MSG_TRAP2)
snmp_send
snmp_close

since we are able to receive the trap for the first time, this means that we
are going on the right track. but for the next time when we change that
host-name again, there is some problem related to the session as the
snmp_open commands fails and returns NULL.
Kindly point out the things which we might be missing

Thanks,
Payal Singla

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Hi,<br><br>I had written a code which sends the trap if host-name is changed.<br>the code is working fine for the first time, but when we try to change the host-name for the second time<br>we get the error&nbsp; :<br><br>&quot;No support for any checked transport domain&quot;
<br>snmptrap: unknown host (<a href="http://127.0.0.1">127.0.0.1</a>)<br><br>In main ()<br>The code is to check the hostname from proc file, infinitely in while loop and as soon as it detects the change a trap function is called.
<br>In trap(),<br>We are mainly initializing the session , opening&nbsp; the session, creating pdu, sending the pdu(trap) n closing the session.<br>main commands used for the above are:<br>snmp_open<br>snmp_pdu_create(SNMP_MSG_TRAP 2)
<br>snmp_send<br>snmp_close<br><br>since we are able to receive the trap for the first time, this means that we are going on the right track. but for the next time when we change that host-name again, there is some problem related to the session as the snmp_open commands fails and returns NULL.
<br>Kindly point out the things which we might be missing<br><br>Thanks, <br>Payal Singla

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