<html> <head> <style></style> </head> <body class='hmmessage'><div dir='ltr'> Hi all, I have a Cisco 2960 which is configured for SNMP. The machine's IP is 10.10.10.3 and can communicate with the Cisco 2960 switch 10.10.10.2 via SNMP. (I tested it with snmpwalk -v 3 -u tom -l authPriv -a sha -A [passwordpassword] -x aes -X passwordpassword 10.10.10.2) And I also modified Nagios's switch.cfg (code below). Nagios is now monitoring the switch. I tried running this command ./check_snmp -H 10.10.10.2 -o "ifOperStatus.1" -U tom -A [passwordpassword] -X passwordpassword -L authPriv -P 3 -a MD5 -c 1050 But looks like it's not working: SNMP problem - No data received from host CMD: /usr/bin/snmpget -t 1 -r 5 -m ALL -v 3 [authpriv] 10.10.10.2:161 ifOperStatus.1 What I would like to do is configure Nagios to poll this switch via SNMP v3. So I understand the check_command part should be changed but am not sure how to do that. Can you please help? Thanks in advance, t ############################################################################### ############################################################################### # # HOST DEFINITIONS # ############################################################################### ############################################################################### # Define the switch that we'll be monitoring define host{ use generic-switch ; Inherit default values from a template host_name linksys-srw224p ; The name we're giving to this switch alias Linksys SRW224P Switch ; A longer name associated with the switch address 192.168.1.253 ; IP address of the switch hostgroups switches ; Host groups this switch is associated with } define host{ use generic-switch host_name core-switch alias Cisco Core Switch address 10.10.10.2 hostgroups switches } ############################################################################### ############################################################################### # # HOST GROUP DEFINITIONS # ############################################################################### ############################################################################### # Create a new hostgroup for switches define hostgroup{ hostgroup_name switches ; The name of the hostgroup alias Network Switches ; Long name of the group } ############################################################################### ############################################################################### # # SERVICE DEFINITIONS # ############################################################################### ############################################################################### # Create a service to PING to switch define service{ use generic-service ; Inherit values from a template host_name linksys-srw224p ; The name of the host the service is associated with service_description PING ; The service description check_command check_ping!200.0,20%!600.0,60% ; The command used to monitor the service normal_check_interval 5 ; Check the service every 5 minutes under normal conditions retry_check_interval 1 ; Re-check the service every minute until its final/hard state is determined } # Monitor uptime via SNMP define service{ use generic-service ; Inherit values from a template host_name linksys-srw224p service_description Uptime check_command check_snmp!-C public -o sysUpTime.0 } # Monitor Port 1 status via SNMP define service{ use generic-service ; Inherit values from a template host_name linksys-srw224p service_description Port 1 Link Status check_command check_snmp!-C public -o ifOperStatus.1 -r 1 -m RFC1213-MIB } # Monitor bandwidth via MRTG logs define service{ use generic-service ; Inherit values from a template host_name linksys-srw224p service_description Port 1 Bandwidth Usage check_command check_local_mrtgtraf!/var/lib/mrtg/192.168.1.253_1.log!AVG!1000000,1000000!5000000,5000000!10 } # Service definition to ping the switch using check_ping define service{ use generic-service hostgroup_name switches service_description PING check_command check_ping!200.0,20%!600.0,60% normal_check_interval 5 retry_check_interval 1 } # Service definition to monitor switch uptime using check_snmp define service{ use generic-service hostgroup_name switches service_description Uptime check_command check_snmp!-C public -o sysUpTime.0 } # Monitor status of port number 1 on the Cisco core switch define service{ use generic-service host_name core-switch service_description Port 1 Link Status check_command check_snmp!-C public -o ifOperStatus.1 -r 1 -m RFC1213-MIB } # Monitor status of port number 5 on the Cisco core switch define service{ use generic-service host_name core-switch service_description Port 5 Link Status check_command check_snmp!-C public -o ifOperStatus.5 -r 1 -m RFC1213-MIB } # Monitor ports 1 - 6 on the Cisco core switch. define service{ use generic-service host_name core-switch service_description Ports 1-6 Link Status check_command check_snmp!-C public -o ifOperStatus.1 -r 1 -m RFC1213-MIB, -o ifOperStatus.2 -r 1 -m RFC1213-MIB, -o ifOperStatus.3 -r 1 -m RFC1213-MIB, -o ifOperStatus.4 -r 1 -m RFC1213-MIB, -o ifOperStatus.5 -r 1 -m RFC1213-MIB, -o ifOperStatus.6 -r 1 -m RFC1213-MIB } <DIV> <DIV> </DIV></DIV> </div></body> </html>