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0neblock / Arduino_SNMP

SNMP Agent built with Arduino
MIT License
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SNMP trap #35

Open Assar-Westman opened 2 years ago

Assar-Westman commented 2 years ago

Hi I am a novice when it comes to SNMP so maybe this is just an self induced coding problem. I have followed the example code to send a SNMP trap. I have been using my Linux machine to receive the SNMP trap send from my Arduino system.
On my Linux system I run sudo snmptrapd -f -Le -d output will then be: Received 76 byte packet from UDP: [192.168.2.102]:161->[192.168.2.5]:162 0000: 30 4A 02 04 00 00 00 01 04 06 70 75 62 6C 69 63 0J........public 0016: A6 3A 02 04 FB BD FF 46 02 04 00 00 00 00 02 04 .:.....F........ 0032: 00 00 00 00 30 26 30 10 06 08 2B 06 01 02 01 01 ....0&0...+..... 0048: 03 00 43 04 00 00 02 A4 30 12 06 08 2B 06 01 02 ..C.....0...+... 0064: 01 01 02 00 06 06 2B CE 04 03 01 01 ......+.....

Cannot find TrapOID in TRAP2 PDU If I change line 151 in SNMPTrap.h OIDType snmpTrapOID = new OIDType(".1.3.6.1.2.1.1.2.0"); to OIDType snmpTrapOID = new OIDType(".1.3.6.1.6.3.1.1.4.1.0");

The output from snmptrapd will than be: Received 78 byte packet from UDP: [192.168.2.102]:161->[192.168.2.5]:162 0000: 30 4C 02 04 00 00 00 01 04 06 70 75 62 6C 69 63 0L........public 0016: A6 3C 02 04 33 71 7B 04 02 04 00 00 00 00 02 04 .<..3q{......... 0032: 00 00 00 00 30 28 30 10 06 08 2B 06 01 02 01 01 ....0(0...+..... 0048: 03 00 43 04 00 00 06 2E 30 14 06 0A 2B 06 01 06 ..C.....0...+... 0064: 03 01 01 04 01 00 06 06 2B CE 04 03 01 01 ........+.....

2022-04-13 11:37:36 [UDP: [192.168.2.102]:161->[192.168.2.5]:162]: DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (1582) 0:00:15.82 SNMPv2-MIB::snmpTrapOID.0 = OID: EISCAT-MIB::eiscat.3.1.1

So I am not really sure what the problem can be but for the moment I will use: OIDType* snmpTrapOID = new OIDType(".1.3.6.1.6.3.1.1.4.1.0");

I am very happy to have found this library as it has served me very well. All the best Assar W.

0neblock commented 1 year ago

Thanks for this, nice find. Maybe if you'd like to make a PR for this change in the example SNMPTrap.h file?