I have set up a virtualbox with Fedora 24 as the guest, and running on a
windows host. The reason I set this up was because I want to use net-snmp on
the virtualbox (since it's not working for me on windows). The problem is: I
can see a v2 trap come in using Wireshark, but cannot receive it in the two
trap receivers that I have tried.
In Wireshark, the v2 trap looks correct. I can see the correct source IP and
the packet looks as I would expect. I am trying to use net-snmp snmptrapd to
receive the trap, and the daemon starts up but doesn't receive anything sent
from a real device. I can send a trap within the VitualBox to itself and see it
get received in the trap daemon, so I know that the receiver is running and
capable of receiving traps. I have confirmed that the daemon is indeed running
on port 162 by running 'netstat -anp | grep 162’. The snmptrapd.conf file has
one line in it: "authCommunity log,net public". I have a coworker who set up
net-snmp exactly as I have, except that he's running on a VM rather than a
VirtualBox and he's able to receive traps. I have also tried installing WebNMS
and using their snmpv3trapd receiver (which I've used before on my windows
machine), and it's also unable to get the trap in the VirtualBox.
There must be some networking type of setting that I'm missing, but at this
point, I have no idea what it would be. Any help/direction/ideas would be
greatly appreciated.
Thanks!
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