sending file content as snmp trap

golden_boy615 · 03-27-2010, 05:52 AM

Hello
I wanted to know is there any way to send a content of a file as snmp trap with snmpd agent of linux?

unSpawn · 03-29-2010, 05:26 AM

Before you go looking for a method maybe check if SNMP is intended to do what you want it to? SNMP means Simple Network Management Protocol. As far as I know a SNMP packet contains a payload only existing of one or more OIDs, so adding anything else may (or may not) confuse software parsing SNMP traps. RFC 1157 says "An implementation of this protocol need not accept messages whose length exceeds 484 octets" and since UDP packet max payload is 65535 bytes anyway, whatever gets added in terms of payload is limited anyway.

golden_boy615 · 03-29-2010, 06:33 AM

thank you very much for your useful information but my file content is less than that you said.
I want to sent information of an industrial system via snmp I wanted to know if I can fetch these information from that system gather it to different files and give those content one bye one to snmp agent and receive it from an snmp monitor software in other side.
thanks for any help.

unSpawn · 03-29-2010, 07:00 AM

If you insist all is OK as far as protocol and other requirements go then maybe start by just writing a trap: http://www.net-snmp.org/wiki/index.php/TUT:snmptrap ...