Check interfaces for errors

this seems to be updated by http://exchange.nagios.org/directory/Plugins/System-Metrics/Networking/Check-Cisco-Interfaces-for-errors-and-drops/details

Good, good, but I had to modify it to get SNMPv3 access. These are the modified code parts: usage_and_exit() unless GetOptions("h|help" => $opt_h, "C|community=s" => $snmp_community, "w|warning=s" => $warn_usage, "c|critical=s" => $crit_usage, "p|port=i" => $port, "i|interface=s" => $iface_descr, "H|hostname=s" => $host_address, "a|authproto=s" => $snmp_authproto, "u|username=s" => $snmp_username, "x|password=s" => $snmp_password, "X|privpasswd=s" => $snmp_privpasswd, "P|privproto=s" => $snmp_privproto, "v|version=s" => $snmp_version ); elsif ( $snmp_version == /3/ ) { ($session, $error) = Net::SNMP->session( -hostname => $host_address, -version => $snmp_version, -username => $snmp_username, -port => $port, -authpassword => $snmp_password, -authprotocol => $snmp_authproto, -privpassword => $snmp_privpasswd, -privprotocol => $snmp_privproto, ); if ( !defined($session) ) { print("UNKNOWN: $error"); exit STATUS_UNKNOWN; } } print "Check_all_interfaces.pl version " . VERSION . "n(c) 2008 M. Lievaartn"; print "Usage: $0 -H host [ options ]nn"; print "Options:n"; print " -H --host STRING or IPADDRESSn"; print " Check interface on the indicated host.n"; print " -C --community STRING n"; print " SNMP Community.n"; print " -i --interface STRINGn"; print " Regexp matching interfaces to examine, f.i. '^FastEthernet' or '^(Eth|Dot.*0$)'.n"; print " -w --warning INTEGERn"; print " number of necessary errors since last check to result in warning status (default: 1)n"; print " -c --critical INTEGERn"; print " number of necessary errors since last check to result in critical status (default: 5)n"; print " -v --version [1, 2 or 3]n"; print " SNMP version to use, use '2' for version 2c. (default: version 2c).n"; print " -a --authproto STRINGn"; print " SNMP auth protocol to use for SNMPv3. (default: md5).n"; print " -P --privproto STRINGn"; print " SNMP private protocol to use for SNMPv3. (default: des).n"; print " -X --privpasswd STRINGn"; print " SNMP private password to use for SNMPv3.n"; print " -u --username STRINGn"; print " SNMP username to use for SNMPv3.n"; print " -x --password STRINGn"; print " SNMP password to use for SNMPv3.n";

Some interfaces have a description but no errors counted. To get rid of errors, add this to line 164: next unless defined $in_errors;

Having some output issues: Use of uninitialized value in concatenation (.) or string at ./check_all_interfaces.pl line 196. Use of uninitialized value in concatenation (.) or string at ./check_all_interfaces.pl line 196. Use of uninitialized value in concatenation (.) or string at ./check_all_interfaces.pl line 196. Use of uninitialized value in concatenation (.) or string at ./check_all_interfaces.pl line 196. Use of uninitialized value in numeric gt (>) at ./check_all_interfaces.pl line 199. Use of uninitialized value in numeric gt (>) at ./check_all_interfaces.pl line 199. Use of uninitialized value in numeric gt (>) at ./check_all_interfaces.pl line 200. Use of uninitialized value in numeric gt (>) at ./check_all_interfaces.pl line 200. Use of uninitialized value in numeric gt (>) at ./check_all_interfaces.pl line 201. Use of uninitialized value in numeric gt (>) at ./check_all_interfaces.pl line 201. Use of uninitialized value in numeric gt (>) at ./check_all_interfaces.pl line 202. Use of uninitialized value in numeric gt (>) at ./check_all_interfaces.pl line 202. Use of uninitialized value in subtraction (-) at ./check_all_interfaces.pl line 213. Use of uninitialized value in subtraction (-) at ./check_all_interfaces.pl line 213. Use of uninitialized value in subtraction (-) at ./check_all_interfaces.pl line 215. Use of uninitialized value in subtraction (-) at ./check_all_interfaces.pl line 215. Use of uninitialized value in subtraction (-) at ./check_all_interfaces.pl line 217. Use of uninitialized value in subtraction (-) at ./check_all_interfaces.pl line 217. Use of uninitialized value in subtraction (-) at ./check_all_interfaces.pl line 219. Use of uninitialized value in subtraction (-) at ./check_all_interfaces.pl line 219. OK: Total in errors: 0, Total out errors: 0, Total in discards: 0, Total out discards: 0 | inErr=0, outErr=0, inDis=0, outDis=0 I think this may be due to the interfce descriptions carrying and - in them. any way to get around this?