traps (send_v2trap()) and AgentX sub-agents
"jeff magder" <[email protected]>
| Newsgroups | gmane.network.net-snmp.user |
|---|---|
| Message-ID | <[email protected]> |
Has anyone ever successfully sent a trap from an AgentX sub-agent on the
NetSNMP platform? For whatever reason, whenever I call sent_v2trap(), no
trap is sent. To check, I have been capturing IP packets with tcpdump.
When I start up NetSNMP, I notice the following packet:
# tcpdump -XX -vvv -i lo
tcpdump: listening on lo, link-type EN10MB (Ethernet), capture size 96 bytes
16:35:46.139710 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto: UDP
(17), length: 128) localhost.33253 > localhost.snmp-trap: { SNMPv2c
C=publicThree { V2Trap(80) R=1219153473 system.sysUpTime.0=32 [|snmp] } }
0x0000: 0000 0000 0000 0000 0000 0000 0800 4500 ..............E.
0x0010: 0080 0000 4000 4011 3c6b 7f00 0001 7f00 ....@.@.<k......
0x0020: 0001 81e5 00a2 006c fe7f 3062 0201 0104 .......l..0b....
0x0030: 0b70 7562 6c69 6354 6872 6565 a750 0204 .publicThree.P..
0x0040: 48aa ce41 0201 0002 0100 3042 300d 0608 H..A......0B0...
0x0050: 2b06 0102 0101 0300 4301 2030 1706 0a2b +.......C..0...+
That packet is generated by the NetSNMP master agent (snmpd) upon startup.
However, when my AgentX subagent calls send_v2trap(), there is no indication
of it. I am certain that normal AgentX functionality is working in my
application, as I am able to query many OIDs which my application has
implemented. Is there somewhere I am supposed to configure a given AgentX
subagent to send its traps to a a particular destination? My current
configuration file for the subagent contains the following single line:
agentXSocket tcp:localhost:705
Since no packets are being sent out on the localhost:705 interface, I won't
bother posting my master agent snmpd.conf configuration. My current
assumption is that all AgentX traffic (including traps) is supposed to be
sent out on localhost:705 as shown above. But obviously my assumptions are
wrong somewhere. :-)
Many thanks for whatever help anyone can offer.
Cheers!
- JM
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