Alex,
I've attempted to test the traps as shown in the tutorial. When I send a manufactured trap, the debug output from snmptrapd shows this:
trace: netsnmp_udp_recv(): snmpUDPDomain.c, 133: netsnmp_udp: recvfrom fd 9 got 96 bytes (from 127.0.0.1) trace: _sess_process_packet(): snmp_api.c, 4892: sess_process_packet: session 0x808ba90 fd 9 pkt 0x808f4b8 length 96 trace: _sess_process_packet(): snmp_api.c, 4916: sess_process_packet: pre-parse fail trace: _sess_read(): snmp_api.c, 5210: sess_read: not reading 6 (fdset 0xbffffc70 set 0) trace: _sess_read(): snmp_api.c, 5210: sess_read: not reading 5 (fdset 0xbffffc70 set 0) trace: _sess_read(): snmp_api.c, 5210: sess_read: not reading 3 (fdset 0xbffffc70 set 0) trace: snmp_sess_select_info(): snmp_api.c, 5622: sess_select: for all sessions: 9 6 5 3
And nothing is recorded in the /tmp/snmptrapd.log file. I'm cutting and pasting things directly from the tutorial and using the traphandle.sh you outlined below.
Any ideas?
Russ
Alex Burger wrote:
Hi Russ.
Russ Woodman wrote:
Hi,
I am attempting to receive traps from various devices on my network (Copper Mountain DSLAMs, Cisco routers, etc.) so that I can then funnel the traps into Nagios for network monitoring. However, nothing I have tried for the last three or more months has allowed me to receive/handle any traps sent by any devices. Below are some relevant files and configuration.
It looks like your script is not processing the output of snmptrapd correctly. Snmptrapd will output multiple lines to the handler. If you try the following snmptrapd.conf and traphandle.sh, it should work. The script is a slightly modified version of the snmptrap tutorial at:
http://www.net-snmp.org/tutorial-5/commands/snmptrap.html
snmptrapd.conf: traphandle default /usr/local/bin/traphandle.sh
traphandle.sh: #!/bin/bash LOGFILE="/tmp/snmptrapd.log" read host read ip vars= while read oid val do if [ "$vars" = "" ] then vars="$oid = $val" else vars="$vars, $oid = $val" fi done echo trap: $1 $host $ip $vars >> ${LOGFILE} exit 0
-- Russ Woodman Systems Administrator Northern Arkansas Telephone Co. PO Box 209 Flippin AR 72634 +1-870-453-8811 (Tel) +1-870-453-9286 (Fax)
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