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| #!/usr/bin/perl -w
# $Header$
# # ============================================================================
# #
# #
# # 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, 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, 675 Mass Ave, Cambridge, MA 02139, USA.
# #
# # ============================================================================
# #
# # Description:
=head1 DESCRIPTION
check_cisco.pl : SNMP check for cisco devices (routers/switches) returning state of different interfaces.
=cut
=head1 USAGE
./check_cisco.pl -h ip -c community -i interface -s state (optional)
=cut
#
#
# ============================================================================
#
# ==============================================================================
# # How using it ?
# ============================================================================
# ============================================================================
#
=head2 Options
C<-h or --host> : Set here the ip of your host
C<-c or --community> : Set here your own community
C<-i or --interface> : Set here the interface u want to check (Use the same syntax as for cisco devices, for exemple FastEthernet1/0/1, Fa2/0/3 or Fa0)
C<-s or --state> : Set the state of your interface. Options are : up/down/dormant
=head3 IMPORTANT:
snmp must be installed to perform snmpget/snmpwalk AND snmp server must be activated on your cisco device (switch or router)
=cut
=cut
=head2 Example
Wanna check Fa2/0/1 is up on your switch ?
./check_cisco.pl -h 192.168.0.1 -c public -i Fa2/0/1
or
./check_cisco.pl -h 192.168.0.1 -c public -i FastEthernet2/0/1
To check your FastEthernet0 is down on your router :
./check_cisco.pl -h 192.168.0.1 -c MyCommunity -i FastEthernet0 (or Fa0) -s down
To check your Backup RNIS BRIO:1 is dormant on your router:
./check_cisco.pl -h 192.168.0.1 -c MyCommunity -i BRI0:1 -s down
State option are : up (-s up), down (-s down), dormant (-s dormant). State is set to up if not defined.
Have FuN
=cut
#
#
## ============================================================================
#
###################Setting up some parameters#########################
use strict;
use Getopt::Long;
my $UNKNOW = -1;
my $OK = 0;
my $WARNING = 1;
my $CRITICAL = 2;
my $state = "up";
my $host = "127.0.0.1";
my $community = "public";
my $warning = "1000";
my $critical = "2000";
my $interface = "Vlan1";
my $oid="0";
my $MIBifDescr="IF-MIB::ifDescr";
my $MIBifOper="IF-MIB::ifOperStatus";
my $MIBifName="IF-MIB::ifName";
my $MIBifLastChange="IF-MIB::ifLastChange";
my $MIBTrafficIn="IF-MIB::ifInOctets";
my $MIBTrafficOut="IF-MIB::ifOutOctets";
my $MIBDescription="IF-MIB::ifAlias";
###################Getting options##############################
GetOptions(
"host|h=s" => \$host,
"community|c=s" => \$community,
"interface|i=s" => \$interface,
"state|s=s" =>\$state
);
chomp($host);
chomp($community);
chomp($interface);
chomp($state);
#################################################################
my $walkDescr = snmpwalkgrep($host, $community, $MIBifDescr, $interface);
my $walkName = snmpwalkgrep($host, $community, $MIBifName, $interface);
if ($walkDescr =~ /$interface/ or $walkName =~ /$interface/){
if ($walkDescr =~ /ifDescr.([0-9]+)/ || $walkName =~ /ifName.([0-9]+)/){
my $oid =$1;
#print "$oid\n";
my $tree="IF-MIB::ifOperStatus.$oid";
my $return=snmpwalk($host, $community, $tree);
if ($return =~ /up/ && $state eq "up"){
my $LastChange= snmpwalk($host, $community, "$MIBifLastChange"."\.".$oid);
my $Alias= snmpwalk($host, $community, "$MIBDescription"."\.".$oid);
my $TrafficIn =snmpwalk($host, $community, "$MIBTrafficIn"."\.".$oid);
my $TrafficOut=snmpwalk($host, $community, "$MIBTrafficOut"."\.".$oid);
my $LastChangeCleaned=CleanMe($LastChange);
my $AliasCleaned=CleanMe($Alias);
my $TrafficInCleaned=CleanMe($TrafficIn);
my $TrafficOutCleaned=CleanMe($TrafficOut);
print "$interface up: $AliasCleaned, LastChanges: $LastChangeCleaned, Traffic in : $TrafficInCleaned octets, out: $TrafficOutCleaned octets\n";
exit $OK;
}elsif ($return =~ /down/ && $state eq "up"){
print "$interface is down\n";
exit $CRITICAL;
}elsif($return =~ /down/ && $state eq "down"){
print "$interface down : ok\n";
exit $OK;
}elsif($return =~ /up/ && $state eq "down"){
print "$interface should not be up\n";
exit $CRITICAL;
}elsif($return =~ /dormant/ && $state eq "down" || $return =~ /dormant/ && $state eq "up"){
print "Error : $interface is sleeping\n";
exit $CRITICAL;
}elsif($return =~ /dormant/ && $state eq "dormant"){
print "$interface is sleeping : ok\n";
exit $OK
}elsif($return =~ /up/ && $state eq "dormant"){
print "$interface is up and should be sleeping\n";
exit $CRITICAL;
}else{
print "Unknown state for $interface : check your -s state syntax\n";
exit $UNKNOW;
}
}else{
print "Not supported\n";
exit $UNKNOW;
}
}else{
print "Interface not found : please check your syntax for this device\n";
exit $UNKNOW;
}
sub CleanMe
{
my $input=$_[0];
if ($input =~ /: (.*)/){
my $return=$1;
chomp($return);
return $return;
}
}
sub snmpwalk
{
my ($host, $community, $tree)=@_;
my $walk = `snmpwalk -v 1 -c $community $host $tree`;
chomp($walk);
return $walk;
}
sub snmpwalkgrep
{
my ($host, $community, $tree, $interface)=@_;
my $walk = `snmpwalk -v 1 -c $community $host $tree |grep $interface`;
chomp($walk);
return $walk;
}
sub snmpget
{
my ($host, $community, $tree)=@_;
my $get = `snmpget -v 1 -c $community $host $tree`;
chomp($get);
return $get;
}
# ============================================================================
#
=head1 AUTHORS
by R3dl!GhT
=cut
=head1 COPYRIGHT
Copyright (C) R3dL!GhT 2007.
This module is free software; you can redistribute it and/or
modify it under the terms of the GNU Public License.
=cut
# ============================================================================
#
# __END__
# |
