title: Snmptrapd not handle all traps
body: <p>Morning everyone,</p>
  
  <p>After passing a lot of time searching a solution and a lot of headaches, i'm coming to you hoping an explanation ;-)</p>
  
  <p>So, I want to receive trap from my routers and specialy <code>"LinkDown"</code> and <code>"LinkUp"</code>.
  The router send the informations to my server, doing tcpdump we can see the traps coming.</p>
  
  <p>My problem is snmptrapd. Verifying in the logs, (/var/log/snmptrapd.log) I see only 1 trap on 3 almost.</p>
  
  <p>I tried from another server to send traps in command line</p>
  
  <pre><code>snmptrap -v2c -c public @IP '' .1.3.6.1.6.3.1.1.5.3 ifIndex i 541 ifAdminStatus i 1 ifOperStatus i 2 .1.3.6.1.2.1.31.1.1.1.1.541 s "eth1"
  </code></pre>
  
  <p>and i have same problem => 1/3 trap received by snmptrapd.</p>
  
  <p>I'm totaly lost and i can't see what the problem, and where to check.</p>
  
  <p>I'm waiting your advises and your lights ! </p>
  
  <p>I'm on <code>CentOS 6.7 (running Centreon 2.7.0</code>) </p>
  
  <p>EDIT May 9 2016 ---
  Ok, the problem came from that too many traps entered my server and some was not handle by snmptrapd.
  I put a firewall rule that drop all the incoming trap except from the router on which i'm doing tests. And all the trap are now handle.
  I just have to check how many trap can be handle by snmptrapd, if someone have the answer you're welcome.</p>
  
  <p>And thanks to all who took time to answers me.</p>