diff --git a/network/sonicwall/snmp/mode/connections.pm b/network/sonicwall/snmp/mode/connections.pm
new file mode 100644
index 000000000..38f072f70
--- /dev/null
+++ b/network/sonicwall/snmp/mode/connections.pm
@@ -0,0 +1,105 @@
+#
+# Copyright 2018 Centreon (http://www.centreon.com/)
+#
+# Centreon is a full-fledged industry-strength solution that meets
+# the needs in IT infrastructure and application monitoring for
+# service performance.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+package network::sonicwall::snmp::mode::connections;
+
+use base qw(centreon::plugins::templates::counter);
+
+use strict;
+use warnings;
+
+sub set_counters {
+    my ($self, %options) = @_;
+    
+    $self->{maps_counters_type} = [
+        { name => 'connections', type => 0 },
+    ];
+    $self->{maps_counters}->{connections} = [
+        { label => 'usage', set => {
+                key_values => [ { name => 'prct_used' }, { name => 'total' }, { name => 'used' } ],
+                closure_custom_output => $self->can('custom_usage_output'),
+                perfdatas => [
+                    { label => 'connections', value => 'used_absolute', template => '%s', 
+                      min => 0, max => 'total_absolute', threshold_total => 'total_absolute', cast_int => 1 },
+                ],
+            }
+        },
+    ];
+}
+
+sub custom_usage_output {
+    my ($self, %options) = @_;
+ 
+    my $msg = sprintf("%.2f%% of the connections cached are used (%d of max. %d)", 
+                      $self->{result_values}->{prct_used_absolute}, 
+                      $self->{result_values}->{used_absolute}, 
+                      $self->{result_values}->{total_absolute});
+    return $msg;
+}
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options);
+    bless $self, $class;
+    
+    $self->{version} = '1.0';
+    $options{options}->add_options(arguments =>
+                                {
+                                });
+
+    return $self;
+}
+
+sub manage_selection {
+    my ($self, %options) = @_;
+
+    my $oid_sonicMaxConnCacheEntries = '.1.3.6.1.4.1.8741.1.3.1.1.0';
+    my $oid_sonicCurrentConnCacheEntries = '.1.3.6.1.4.1.8741.1.3.1.2.0';
+    
+    my $result = $options{snmp}->get_leef(oids => [$oid_sonicMaxConnCacheEntries, $oid_sonicCurrentConnCacheEntries], nothing_quit => 1);
+
+    $self->{connections} = { total => $result->{$oid_sonicMaxConnCacheEntries}, 
+                             used => $result->{$oid_sonicCurrentConnCacheEntries}, 
+                             prct_used => $result->{$oid_sonicCurrentConnCacheEntries} * 100 / $result->{$oid_sonicMaxConnCacheEntries},
+                           };
+                      
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check Sonicwall connections usage 
+
+=over 8
+
+=item B<--warning-usage>
+
+Threshold warning. Usage (%)
+
+=item B<--critical-usage>
+
+Threshold critical. Usage (%)
+
+=back
+
+=cut
diff --git a/network/sonicwall/snmp/mode/cpu.pm b/network/sonicwall/snmp/mode/cpu.pm
new file mode 100644
index 000000000..914101024
--- /dev/null
+++ b/network/sonicwall/snmp/mode/cpu.pm
@@ -0,0 +1,96 @@
+#
+# Copyright 2018 Centreon (http://www.centreon.com/)
+#
+# Centreon is a full-fledged industry-strength solution that meets
+# the needs in IT infrastructure and application monitoring for
+# service performance.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+package network::sonicwall::snmp::mode::cpu;
+
+use base qw(centreon::plugins::templates::counter);
+
+use strict;
+use warnings;
+
+sub set_counters {
+    my ($self, %options) = @_;
+    
+    $self->{maps_counters_type} = [
+        { name => 'cpu_usage', type => 0, cb_prefix_output => 'prefix_cpu_output' },
+    ];
+    
+    $self->{maps_counters}->{cpu_usage} = [
+        { label => 'cpu', set => {
+                key_values => [ { name => 'prct_used' } ],
+                output_template => '%.2f %%',
+                perfdatas => [
+                    { label => 'cpu', value => 'prct_used_absolute', template => '%.2f',
+                      unit => '%', min => 0, max => 100 },
+                ],
+            }
+        },
+    ];
+}
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options);
+    bless $self, $class;
+    
+    $self->{version} = '1.0';
+    $options{options}->add_options(arguments =>
+                                { 
+                                });
+    
+    return $self;
+}
+
+sub prefix_cpu_output {
+    my ($self, %options) = @_;
+    
+    return "CPU Usage ";
+}
+
+sub manage_selection {
+    my ($self, %options) = @_;
+
+    my $oid_sonicCurrentCPUUtil = '.1.3.6.1.4.1.8741.1.3.1.3.0';
+    my $snmp_result = $options{snmp}->get_leef(oids => [$oid_sonicCurrentCPUUtil], nothing_quit => 1);
+
+    $self->{cpu_usage} = { prct_used => $snmp_result->{$oid_sonicCurrentCPUUtil} };
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check CPU usage.
+
+=over 8
+
+=item B<--warning-cpu>
+
+Threshold warning.
+
+=item B<--critical-cpu>
+
+Threshold critical.
+
+=back
+
+=cut
diff --git a/network/sonicwall/snmp/mode/memory.pm b/network/sonicwall/snmp/mode/memory.pm
new file mode 100644
index 000000000..d52b8fe80
--- /dev/null
+++ b/network/sonicwall/snmp/mode/memory.pm
@@ -0,0 +1,96 @@
+#
+# Copyright 2018 Centreon (http://www.centreon.com/)
+#
+# Centreon is a full-fledged industry-strength solution that meets
+# the needs in IT infrastructure and application monitoring for
+# service performance.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+package network::sonicwall::snmp::mode::memory;
+
+use base qw(centreon::plugins::templates::counter);
+
+use strict;
+use warnings;
+
+sub set_counters {
+    my ($self, %options) = @_;
+    
+    $self->{maps_counters_type} = [
+        { name => 'memory_usage', type => 0, cb_prefix_output => 'prefix_memory_output' },
+    ];
+    
+    $self->{maps_counters}->{memory_usage} = [
+        { label => 'memory', set => {
+                key_values => [ { name => 'prct_used' } ],
+                output_template => '%.2f %%',
+                perfdatas => [
+                    { label => 'memory', value => 'prct_used_absolute', template => '%.2f',
+                      unit => '%', min => 0, max => 100 },
+                ],
+            }
+        },
+    ];
+}
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options);
+    bless $self, $class;
+    
+    $self->{version} = '1.0';
+    $options{options}->add_options(arguments =>
+                                { 
+                                });
+    
+    return $self;
+}
+
+sub prefix_memory_output {
+    my ($self, %options) = @_;
+    
+    return "Memory Usage ";
+}
+
+sub manage_selection {
+    my ($self, %options) = @_;
+
+    my $oid_sonicCurrentRAMUtil = '.1.3.6.1.4.1.8741.1.3.1.4.0';
+    my $snmp_result = $options{snmp}->get_leef(oids => [$oid_sonicCurrentRAMUtil], nothing_quit => 1);
+
+    $self->{memory_usage} = { prct_used => $snmp_result->{$oid_sonicCurrentRAMUtil} };
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check Memory usage. 
+
+=over 8
+
+=item B<--warning-memory>
+
+Threshold warning. (percent)
+
+=item B<--critical-memory>
+
+Threshold critical. (percent)
+
+=back
+
+=cut
diff --git a/network/sonicwall/snmp/mode/vpn.pm b/network/sonicwall/snmp/mode/vpn.pm
new file mode 100644
index 000000000..0fb68498b
--- /dev/null
+++ b/network/sonicwall/snmp/mode/vpn.pm
@@ -0,0 +1,213 @@
+#
+# Copyright 2018 Centreon (http://www.centreon.com/)
+#
+# Centreon is a full-fledged industry-strength solution that meets
+# the needs in IT infrastructure and application monitoring for
+# service performance.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+package network::sonicwall::snmp::mode::vpn;
+
+use base qw(centreon::plugins::templates::counter);
+
+use strict;
+use warnings;
+use Digest::MD5 qw(md5_hex);
+
+my $instance_mode;
+
+sub custom_status_threshold {
+    my ($self, %options) = @_;
+    my $status = 'ok';
+    my $message;
+
+    eval {
+        local $SIG{__WARN__} = sub { $message = $_[0]; };
+        local $SIG{__DIE__} = sub { $message = $_[0]; };
+
+        if (defined($instance_mode->{option_results}->{critical_status}) && $instance_mode->{option_results}->{critical_status} ne '' &&
+            eval "$instance_mode->{option_results}->{critical_status}") {
+            $status = 'critical';
+        } elsif (defined($instance_mode->{option_results}->{warning_status}) && $instance_mode->{option_results}->{warning_status} ne '' &&
+                 eval "$instance_mode->{option_results}->{warning_status}") {
+            $status = 'warning';
+        }
+    };
+    if (defined($message)) {
+        $self->{output}->output_add(long_msg => 'filter status issue: ' . $message);
+    }
+
+    return $status;
+}
+
+sub custom_status_output {
+    my ($self, %options) = @_;
+
+    my $msg = 'connection status : ' . $self->{result_values}->{connectstatus} . ' [activation status: ' . $self->{result_values}->{activestatus} . ']';
+    return $msg;
+}
+
+sub custom_status_calc {
+    my ($self, %options) = @_;
+
+    $self->{result_values}->{activestatus} = $options{new_datas}->{$self->{instance} . '_activestatus'};
+    $self->{result_values}->{connectstatus} = $options{new_datas}->{$self->{instance} . '_connectstatus'};
+    $self->{result_values}->{display} = $options{new_datas}->{$self->{instance} . '_display'};
+    return 0;
+}
+
+sub set_counters {
+    my ($self, %options) = @_;
+
+    $self->{maps_counters_type} = [
+        { name => 'vpn', type => 1, cb_prefix_output => 'prefix_vpn_output', message_multiple => 'All VPN tunnels are OK' },
+    ];
+
+    $self->{maps_counters}->{vpn} = [
+        { label => 'traffic-in', set => {
+                key_values => [ { name => 'traffic_in', diff => 1 }, { name => 'display' } ],
+                per_second => 1, output_change_bytes => 2,
+                output_template => 'Traffic In: %s %s/s',
+                perfdatas => [
+                    { label => 'traffic_in', value => 'traffic_in_per_second', template => '%.2f',
+                      min => 0, unit => 'b/s', label_extra_instance => 1, instance_use => 'display_absolute' },
+                ],
+            }
+        },
+        { label => 'traffic-out', set => {
+                key_values => [ { name => 'traffic_out', diff => 1 }, { name => 'display' } ],
+                per_second => 1, output_change_bytes => 2,
+                output_template => 'Traffic Out: %s %s/s',
+                perfdatas => [
+                    { label => 'traffic_out', value => 'traffic_out_per_second', template => '%.2f',
+                      min => 0, unit => 'b/s', label_extra_instance => 1, instance_use => 'display_absolute' },
+                ],
+            }
+        }
+    ];
+}
+
+sub prefix_vpn_output {
+    my ($self, %options) = @_;
+
+    return "VPN '" . $options{instance_value}->{display} . "' ";
+}
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options, statefile => 1);
+    bless $self, $class;
+
+    $self->{version} = '1.0';
+    $options{options}->add_options(arguments =>
+                                {
+                                "filter-name:s"     => { name => 'filter_name' },
+                                "warning-status:s"  => { name => 'warning_status', default => '' },
+                                "critical-status:s" => { name => 'critical_status', default => '%{connectstatus} eq "disconnected"' },
+                                });
+    return $self;
+}
+
+sub change_macros {
+    my ($self, %options) = @_;
+
+    foreach (('warning_status', 'critical_status')) {
+        if (defined($self->{option_results}->{$_})) {
+            $self->{option_results}->{$_} =~ s/%\{(.*?)\}/\$self->{result_values}->{$1}/g;
+        }
+    }
+}
+
+sub check_options {
+    my ($self, %options) = @_;
+    $self->SUPER::check_options(%options);
+
+    $self->change_macros();
+    $instance_mode = $self;
+}
+
+my $oid_sonicSAStatEntry = '.1.3.6.1.4.1.8741.1.3.2.1.1.1';
+my $oid_sonicSAStatUserName = '.1.3.6.1.4.1.8741.1.3.2.1.1.1.14';
+my $oid_sonicSAStatEncryptByteCount = '.1.3.6.1.4.1.8741.1.3.2.1.1.1.9';
+my $oid_sonicSAStatDecryptByteCount = '.1.3.6.1.4.1.8741.1.3.2.1.1.1.11';
+
+sub manage_selection {
+    my ($self, %options) = @_;
+
+    $self->{cache_name} = "sonicwall_" . $options{snmp}->get_hostname()  . '_' . $options{snmp}->get_port() . '_' . $self->{mode} . '_' .
+        (defined($self->{option_results}->{filter_counters}) ? md5_hex($self->{option_results}->{filter_counters}) : md5_hex('all')) . '_' .
+        (defined($self->{option_results}->{filter_name}) ? md5_hex($self->{option_results}->{filter_name}) : md5_hex('all'));
+
+    $self->{vpn} = {};
+    my $result = $options{snmp}->get_table(oid => $oid_sonicSAStatEntry, nothing_quit => 1);
+
+    foreach my $oid (sort keys %{$result}) {
+        next if ($oid !~ /^$oid_sonicSAStatUserName\.(.*)$/);
+        my $instance = $1;
+
+        if (defined($self->{option_results}->{filter_name}) && $self->{option_results}->{filter_name} ne '' &&
+            $result->{$oid_sonicSAStatUserName . '.' . $instance} !~ /$self->{option_results}->{filter_name}/) {
+            $self->{output}->output_add(long_msg => "skipping  '" . $result->{$oid_sonicSAStatUserName . '.' . $instance} . "': no matching filter.", debug => 1);
+            next;
+        }
+	
+        $self->{vpn}->{$result->{$oid_sonicSAStatUserName . '.' . $instance}} = { traffic_in => $result->{$oid_sonicSAStatEncryptByteCount . '.' . $instance} * 8,
+										  traffic_out => $result->{$oid_sonicSAStatDecryptByteCount . '.' . $instance} * 8,
+										  display => $result->{$oid_sonicSAStatUserName . '.' . $instance} };
+    }
+    
+    if (scalar(keys %{$self->{vpn}}) <= 0) {
+        $self->{output}->add_option_msg(short_msg => "No vpn found.");
+        $self->{output}->option_exit();
+    }
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check VPN state and traffic.
+
+=over 8
+
+=item B<--filter-name>
+
+Filter vpn name with regexp.
+
+=item B<--warning-*>
+
+Threshold warning.
+Can be: 'traffic-in', 'traffic-out'.
+
+=item B<--critical-*>
+
+Threshold critical.
+Can be: 'traffic-in', 'traffic-out'.
+
+=item B<--warning-status>
+
+Set warning threshold for status.
+Can used special variables like: %{activestatus}, %{connectstatus}, %{display}
+
+=item B<--critical-status>
+
+Set critical threshold for status (Default: '%{connectstatus} eq "disconnected"').
+Can used special variables like: %{activestatus}, %{connectstatus}, %{display}
+
+=back
+
+=cut
diff --git a/network/sonicwall/snmp/plugin.pm b/network/sonicwall/snmp/plugin.pm
new file mode 100644
index 000000000..047c8f607
--- /dev/null
+++ b/network/sonicwall/snmp/plugin.pm
@@ -0,0 +1,51 @@
+#
+# Copyright 2018 Centreon (http://www.centreon.com/)
+#
+# Centreon is a full-fledged industry-strength solution that meets
+# the needs in IT infrastructure and application monitoring for
+# service performance.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+package network::sonicwall::snmp::plugin;
+
+use strict;
+use warnings;
+use base qw(centreon::plugins::script_snmp);
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options);
+    bless $self, $class;
+
+    $self->{version} = '1.0';
+    %{$self->{modes}} = (
+                         'cpu'              => 'network::sonicwall::snmp::mode::cpu',
+                         'memory'           => 'network::sonicwall::snmp::mode::memory',
+                         'connections'      => 'network::sonicwall::snmp::mode::connections',
+			 'vpn'		    => 'network::sonicwall::snmp::mode::vpn',
+                         );
+
+    return $self;
+}
+
+1;
+
+__END__
+
+=head1 PLUGIN DESCRIPTION
+
+Check Sonicwall firewalls equipments in SNMP
+
+=cut