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diff --git a/contrib/check_maxwanstate.pl b/contrib/check_maxwanstate.pl
--- /dev/null
@@ -0,0 +1,201 @@
+#!/usr/bin/perl -w
+#
+# check_maxwanstate.pl - nagios plugin
+#
+#
+# Copyright (C) 2000 Christoph Kron
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+#
+# Report bugs to: ck@zet.net
+#
+# 11.01.2000 Version 1.0
+
+use strict;
+
+use Net::SNMP;
+use Getopt::Long;
+&Getopt::Long::config('auto_abbrev');
+
+
+my $status;
+my $TIMEOUT = 1500;
+
+my %ERRORS = ('UNKNOWN' , '-1',
+ 'OK' , '0',
+ 'WARNING', '1',
+ 'CRITICAL', '2');
+
+my %wanLineState = (
+ 1,'ls-unknown',
+ 2,'ls-does-not-exist',
+ 3,'ls-disabled',
+ 4,'ls-no-physical',
+ 5,'ls-no-logical',
+ 6,'ls-point-to-point',
+ 7,'ls-multipoint-1',
+ 8,'ls-multipoint-2',
+ 9,'ls-loss-of-sync',
+ 10,'ls-yellow-alarm',
+ 11,'ls-ais-receive',
+ 12,'ls-no-d-channel',
+ 13,'ls-active',
+ 14,'ls-maintenance');
+
+my %wanLineType = (
+ '1.3.6.1.4.1.529.4.1','Any',
+ '1.3.6.1.4.1.529.4.2','T1',
+ '1.3.6.1.4.1.529.4.3','E1',
+ '1.3.6.1.4.1.529.4.4','Dpnss',
+ '1.3.6.1.4.1.529.4.5','Bri',
+ '1.3.6.1.4.1.529.4.6','S562',
+ '1.3.6.1.4.1.529.4.7','S564',
+ '1.3.6.1.4.1.529.4.8','Sdsl',
+ '1.3.6.1.4.1.529.4.9','AdslCap');
+
+my $state = "UNKNOWN";
+my $answer = "";
+my $snmpkey;
+my $snmpoid;
+my $key;
+my $community = "public";
+my $port = 161;
+my @snmpoids;
+my $snmpWanLineName = '1.3.6.1.4.1.529.4.21.1.2';
+my $snmpWanLineType = '1.3.6.1.4.1.529.4.21.1.3';
+my $snmpWanLineState = '1.3.6.1.4.1.529.4.21.1.5';
+my $snmpWanLineUsage = '1.3.6.1.4.1.529.4.21.1.8';
+
+my $hostname;
+my $session;
+my $error;
+my $response;
+my %wanStatus;
+my $ifup =0 ;
+my $ifdown =0;
+my $ifdormant = 0;
+my $ifmessage;
+
+sub usage {
+ printf "\nMissing arguments!\n";
+ printf "\n";
+ printf "Perl Check maxwanstate plugin for Nagios\n";
+ printf "monitors E1/T1 interface status\n";
+ printf "usage: \n";
+ printf "check_maxwanstate.pl -c <READCOMMUNITY> -p <PORT> <HOSTNAME>";
+ printf "Copyright (C) 2000 Christoph Kron\n";
+ printf "check_maxwanstate.pl comes with ABSOLUTELY NO WARRANTY\n";
+ printf "This programm is licensed under the terms of the ";
+ printf "GNU General Public License\n(check source code for details)\n";
+ printf "\n\n";
+ exit $ERRORS{"UNKNOWN"};
+}
+
+# Just in case of problems, let's not hang Nagios
+$SIG{'ALRM'} = sub {
+ print ("ERROR: No snmp response from $hostname (alarm)\n");
+ exit $ERRORS{"UNKNOWN"};
+};
+alarm($TIMEOUT);
+
+
+$status = GetOptions("community=s",\$community,
+ "port=i",\$port);
+if ($status == 0)
+{
+ &usage;
+}
+
+ #shift;
+ $hostname = shift || &usage;
+
+
+
+push(@snmpoids,$snmpWanLineUsage);
+push(@snmpoids,$snmpWanLineState);
+push(@snmpoids,$snmpWanLineName);
+push(@snmpoids,$snmpWanLineType);
+
+foreach $snmpoid (@snmpoids) {
+
+ ($session, $error) = Net::SNMP->session(
+ -hostname => $hostname,
+ -community => $community,
+ -port => $port
+ );
+
+ if (!defined($session)) {
+ $state='UNKNOWN';
+ $answer=$error;
+ print ("$state: $answer");
+ exit $ERRORS{$state};
+ }
+
+ if (!defined($response = $session->get_table($snmpoid))) {
+ $answer=$session->error;
+ $session->close;
+ $state = 'CRITICAL';
+ print ("$state: $answer,$community,$snmpkey");
+ exit $ERRORS{$state};
+ }
+
+ foreach $snmpkey (keys %{$response}) {
+ $snmpkey =~ /.*\.(\d+)$/;
+ $key = $1;
+ $wanStatus{$key}{$snmpoid} = $response->{$snmpkey};
+ }
+ $session->close;
+}
+
+ foreach $key (keys %wanStatus) {
+ # look only at active Interfaces lu-trunk(5)
+ if ($wanStatus{$key}{$snmpWanLineUsage} == 5 ) {
+
+ # 13 -> active
+ if ($wanStatus{$key}{$snmpWanLineState} == 13 ) {
+ $ifup++;
+ }
+ else {
+ $ifdown++ ;
+ $ifmessage .= sprintf("%s interface status : %s (%s)<BR>",
+ $wanLineType{$wanStatus{$key}{$snmpWanLineType}},
+ $wanLineState{$wanStatus{$key}{$snmpWanLineState}},
+ $wanStatus{$key}{$snmpWanLineName});
+
+ }
+ }
+ }
+
+
+ if ($ifdown > 0) {
+ $state = 'CRITICAL';
+ $answer = sprintf("host '%s', interfaces up: %d, down: %d<BR>",
+ $hostname,
+ $ifup,
+ $ifdown);
+ $answer = $answer . $ifmessage . "\n";
+ }
+ else {
+ $state = 'OK';
+ $answer = sprintf("host '%s', interfaces up: %d, down: %d\n",
+ $hostname,
+ $ifup,
+ $ifdown);
+ }
+
+print ("$state: $answer");
+exit $ERRORS{$state};
+