diff --git a/packaging/centreon-plugin-Network-Opengear-Snmp/deb.json b/packaging/centreon-plugin-Network-Opengear-Snmp/deb.json
new file mode 100644
index 000000000..5d24d64c4
--- /dev/null
+++ b/packaging/centreon-plugin-Network-Opengear-Snmp/deb.json
@@ -0,0 +1,5 @@
+{
+    "dependencies": [
+        "libsnmp-perl"
+    ]
+}
diff --git a/packaging/centreon-plugin-Network-Opengear-Snmp/pkg.json b/packaging/centreon-plugin-Network-Opengear-Snmp/pkg.json
new file mode 100644
index 000000000..7ca5c35e3
--- /dev/null
+++ b/packaging/centreon-plugin-Network-Opengear-Snmp/pkg.json
@@ -0,0 +1,17 @@
+{
+    "pkg_name": "centreon-plugin-Network-Opengear-Snmp",
+    "pkg_summary": "Centreon Plugin Opengear SNMP",
+    "plugin_name": "centreon_opengear_snmp.pl",
+    "files": [
+        "centreon/plugins/script_snmp.pm",
+        "centreon/plugins/snmp.pm",
+        "snmp_standard/mode/cpudetailed.pm",
+        "snmp_standard/mode/interfaces.pm",
+        "snmp_standard/mode/listinterfaces.pm",
+        "snmp_standard/mode/loadaverage.pm",
+        "snmp_standard/mode/memory.pm",
+        "snmp_standard/mode/resources/",
+        "snmp_standard/mode/uptime.pm",
+        "network/opengear/snmp/"
+    ]
+}
diff --git a/packaging/centreon-plugin-Network-Opengear-Snmp/rpm.json b/packaging/centreon-plugin-Network-Opengear-Snmp/rpm.json
new file mode 100644
index 000000000..14e966306
--- /dev/null
+++ b/packaging/centreon-plugin-Network-Opengear-Snmp/rpm.json
@@ -0,0 +1,5 @@
+{
+    "dependencies": [
+        "perl(SNMP)"
+    ]
+}
diff --git a/src/network/opengear/snmp/mode/cpudetailed.pm b/src/network/opengear/snmp/mode/cpudetailed.pm
new file mode 100644
index 000000000..8d5d8c7ee
--- /dev/null
+++ b/src/network/opengear/snmp/mode/cpudetailed.pm
@@ -0,0 +1,59 @@
+#
+# Copyright 2023 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::opengear::snmp::mode::cpudetailed;
+
+use base qw(snmp_standard::mode::cpudetailed);
+
+use strict;
+use warnings;
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options, force_new_perfdata => 1);
+    bless $self, $class;
+
+    return $self;
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check system CPUs (UCD-SNMP-MIB) (User, Nice, System, Idle, Wait, Kernel, Interrupt, SoftIRQ, Steal, Guest, GuestNice)
+An average of all CPUs.
+
+=over 8
+
+=item B<--warning-*>
+
+Threshold warning in percent.
+Can be: 'user', 'nice', 'system', 'idle', 'wait', 'kernel', 'interrupt', 'softirq', 'steal', 'guest', 'guestnice'.
+
+=item B<--critical-*>
+
+Threshold critical in percent.
+Can be: 'user', 'nice', 'system', 'idle', 'wait', 'kernel', 'interrupt', 'softirq', 'steal', 'guest', 'guestnice'.
+
+=back
+
+=cut
diff --git a/src/network/opengear/snmp/mode/interfaces.pm b/src/network/opengear/snmp/mode/interfaces.pm
new file mode 100644
index 000000000..e2c9da614
--- /dev/null
+++ b/src/network/opengear/snmp/mode/interfaces.pm
@@ -0,0 +1,182 @@
+#
+# Copyright 2023 Centreon (http://www.centreon.com/)
+#
+# Centreon is a full-fledged industry-strength solution that meets
+# the needs in IT infrastructure and application monitoring for
+# service performance.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+package network::opengear::snmp::mode::interfaces;
+
+use base qw(snmp_standard::mode::interfaces);
+
+use strict;
+use warnings;
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options, force_new_perfdata => 1);
+    bless $self, $class;
+
+    return $self;
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check interfaces.
+
+=over 8
+
+=item B<--add-global>
+
+Check global port statistics (By default if no --add-* option is set).
+
+=item B<--add-status>
+
+Check interface status.
+
+=item B<--add-duplex-status>
+
+Check duplex status (with --warning-status and --critical-status).
+
+=item B<--add-traffic>
+
+Check interface traffic.
+
+=item B<--add-errors>
+
+Check interface errors.
+
+=item B<--add-cast>
+
+Check interface cast.
+
+=item B<--add-speed>
+
+Check interface speed.
+
+=item B<--add-volume>
+
+Check interface data volume between two checks (not supposed to be graphed, useful for BI reporting).
+
+=item B<--check-metrics>
+
+If the expression is true, metrics are checked (Default: '%{opstatus} eq "up"').
+
+=item B<--warning-status>
+
+Set warning threshold for status.
+Can used special variables like: %{admstatus}, %{opstatus}, %{duplexstatus}, %{display}
+
+=item B<--critical-status>
+
+Set critical threshold for status (Default: '%{admstatus} eq "up" and %{opstatus} ne "up"').
+Can used special variables like: %{admstatus}, %{opstatus}, %{duplexstatus}, %{display}
+
+=item B<--warning-*> B<--critical-*>
+
+Thresholds.
+Can be: 'total-port', 'total-admin-up', 'total-admin-down', 'total-oper-up', 'total-oper-down',
+'in-traffic', 'out-traffic', 'in-error', 'in-discard', 'out-error', 'out-discard',
+'in-ucast', 'in-bcast', 'in-mcast', 'out-ucast', 'out-bcast', 'out-mcast',
+'speed' (b/s).
+
+=item B<--units-traffic>
+
+Units of thresholds for the traffic (Default: 'percent_delta') ('percent_delta', 'bps', 'counter').
+
+=item B<--units-errors>
+
+Units of thresholds for errors/discards (Default: 'percent_delta') ('percent_delta', 'percent', 'delta', 'counter').
+
+=item B<--units-cast>
+
+Units of thresholds for communication types (Default: 'percent_delta') ('percent_delta', 'percent', 'delta', 'counter').
+
+=item B<--nagvis-perfdata>
+
+Display traffic perfdata to be compatible with nagvis widget.
+
+=item B<--interface>
+
+Set the interface (number expected) ex: 1,2,... (empty means 'check all interface').
+
+=item B<--name>
+
+Allows to use interface name with option --interface instead of interface oid index (Can be a regexp)
+
+=item B<--speed>
+
+Set interface speed for incoming/outgoing traffic (in Mb).
+
+=item B<--speed-in>
+
+Set interface speed for incoming traffic (in Mb).
+
+=item B<--speed-out>
+
+Set interface speed for outgoing traffic (in Mb).
+
+=item B<--map-speed-dsl>
+
+Get interface speed configuration for interface type 'adsl' and 'vdsl2'.
+
+Syntax: --map-speed-dsl=interface-src-name,interface-dsl-name
+
+E.g: --map-speed-dsl=Et0.835,Et0-vdsl2
+
+=item B<--force-counters64>
+
+Force to use 64 bits counters only. Can be used to improve performance.
+
+=item B<--force-counters32>
+
+Force to use 32 bits counters (even in snmp v2c and v3). Should be used when 64 bits counters are buggy.
+
+=item B<--reload-cache-time>
+
+Time in minutes before reloading cache file (default: 180).
+
+=item B<--oid-filter>
+
+Choose OID used to filter interface (default: ifName) (values: ifDesc, ifAlias, ifName, IpAddr).
+
+=item B<--oid-display>
+
+Choose OID used to display interface (default: ifName) (values: ifDesc, ifAlias, ifName, IpAddr).
+
+=item B<--oid-extra-display>
+
+Add an OID to display.
+
+=item B<--display-transform-src>
+
+Regexp src to transform display value.
+
+=item B<--display-transform-dst>
+
+Regexp dst to transform display value.
+
+=item B<--show-cache>
+
+Display cache interface datas.
+
+=back
+
+=cut
diff --git a/src/network/opengear/snmp/mode/listserialports.pm b/src/network/opengear/snmp/mode/listserialports.pm
new file mode 100644
index 000000000..755fbe00e
--- /dev/null
+++ b/src/network/opengear/snmp/mode/listserialports.pm
@@ -0,0 +1,108 @@
+#
+# Copyright 2023 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::opengear::snmp::mode::listserialports;
+
+use base qw(centreon::plugins::mode);
+
+use strict;
+use warnings;
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options);
+    bless $self, $class;
+
+    $options{options}->add_options(arguments => {});
+
+    return $self;
+}
+
+sub check_options {
+    my ($self, %options) = @_;
+    $self->SUPER::init(%options);
+}
+
+sub manage_selection {
+    my ($self, %options) = @_;
+
+    my $oid_label = '.1.3.6.1.4.1.25049.16.1.1.11'; # ogSerialPortStatusLabel
+    my $snmp_result = $options{snmp}->get_table(oid => $oid_label);
+
+    my $ports = {};
+    foreach (keys %$snmp_result) {
+        $ports->{ $snmp_result->{$_} } = 1;
+    }
+
+    return $ports;
+}
+
+sub run {
+    my ($self, %options) = @_;
+  
+    my $ports = $self->manage_selection(%options);
+    foreach (sort keys %$ports) {
+        $self->{output}->output_add(
+            long_msg => sprintf(
+                '[name: %s]',
+                $_
+            )
+        );
+    }
+
+    $self->{output}->output_add(
+        severity => 'OK',
+        short_msg => 'List serial ports:'
+    );
+    $self->{output}->display(nolabel => 1, force_ignore_perfdata => 1, force_long_output => 1);
+    $self->{output}->exit();
+}
+
+sub disco_format {
+    my ($self, %options) = @_;
+
+    $self->{output}->add_disco_format(elements => ['name']);
+}
+
+sub disco_show {
+    my ($self, %options) = @_;
+
+    my $ports = $self->manage_selection(%options);
+    foreach (sort keys %$ports) { 
+        $self->{output}->add_disco_entry(
+            name => $_
+        );
+    }
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+List serial ports.
+
+=over 8
+
+=back
+
+=cut
+    
diff --git a/src/network/opengear/snmp/mode/load.pm b/src/network/opengear/snmp/mode/load.pm
new file mode 100644
index 000000000..a8ea84d63
--- /dev/null
+++ b/src/network/opengear/snmp/mode/load.pm
@@ -0,0 +1,60 @@
+#
+# Copyright 2023 Centreon (http://www.centreon.com/)
+#
+# Centreon is a full-fledged industry-strength solution that meets
+# the needs in IT infrastructure and application monitoring for
+# service performance.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+package network::opengear::snmp::mode::load;
+
+use base qw(snmp_standard::mode::loadaverage);
+
+use strict;
+use warnings;
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options, force_new_perfdata => 1);
+    bless $self, $class;
+
+    return $self;
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check system load-average.
+
+=over 8
+
+=item B<--warning>
+
+Threshold warning (1min,5min,15min).
+
+=item B<--critical>
+
+Threshold critical (1min,5min,15min).
+
+=item B<--average>
+
+Load average for the number of CPUs.
+
+=back
+
+=cut
diff --git a/src/network/opengear/snmp/mode/memory.pm b/src/network/opengear/snmp/mode/memory.pm
new file mode 100644
index 000000000..73188df26
--- /dev/null
+++ b/src/network/opengear/snmp/mode/memory.pm
@@ -0,0 +1,67 @@
+#
+# Copyright 2023 Centreon (http://www.centreon.com/)
+#
+# Centreon is a full-fledged industry-strength solution that meets
+# the needs in IT infrastructure and application monitoring for
+# service performance.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+package network::opengear::snmp::mode::memory;
+
+use base qw(snmp_standard::mode::memory);
+
+use strict;
+use warnings;
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options, force_new_perfdata => 1);
+    bless $self, $class;
+
+    return $self;
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check memory usage (UCD-SNMP-MIB).
+
+=over 8
+
+=item B<--units>
+
+Units of thresholds (Default: '%') ('%', 'absolute') (Deprecated. Please use new counters directly)
+
+=item B<--free>
+
+Thresholds are on free space left (Deprecated. Please use new counters directly)
+
+=item B<--swap>
+
+Check swap also.
+
+=item B<--warning-*> B<--critical-*>
+
+Thresholds.
+Can be: 'usage' (B), 'usage-free' (B), 'usage-prct' (%), 
+'swap' (B), 'swap-free' (B), 'swap-prct' (%),
+'buffer' (B), 'cached' (B), 'shared' (B).
+
+=back
+
+=cut
diff --git a/src/network/opengear/snmp/mode/serialports.pm b/src/network/opengear/snmp/mode/serialports.pm
new file mode 100644
index 000000000..53a7d79ba
--- /dev/null
+++ b/src/network/opengear/snmp/mode/serialports.pm
@@ -0,0 +1,264 @@
+#
+# Copyright 2023 Centreon (http://www.centreon.com/)
+#
+# Centreon is a full-fledged industry-strength solution that meets
+# the needs in IT infrastructure and application monitoring for
+# service performance.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+package network::opengear::snmp::mode::serialports;
+
+use base qw(centreon::plugins::templates::counter);
+
+use strict;
+use warnings;
+use Digest::MD5 qw(md5_hex);
+
+sub custom_traffic_perfdata {
+    my ($self, %options) = @_;
+
+    my ($warning, $critical);
+    if ($self->{instance_mode}->{option_results}->{units_traffic} eq 'percent_delta' && defined($self->{result_values}->{speed})) {
+        $warning = $self->{perfdata}->get_perfdata_for_output(label => 'warning-' . $self->{thlabel}, total => $self->{result_values}->{speed}, cast_int => 1);
+        $critical = $self->{perfdata}->get_perfdata_for_output(label => 'critical-' . $self->{thlabel}, total => $self->{result_values}->{speed}, cast_int => 1);
+    } elsif ($self->{instance_mode}->{option_results}->{units_traffic} =~ /bps|counter/) {
+        $warning = $self->{perfdata}->get_perfdata_for_output(label => 'warning-' . $self->{thlabel});
+        $critical = $self->{perfdata}->get_perfdata_for_output(label => 'critical-' . $self->{thlabel});
+    }
+
+    if ($self->{instance_mode}->{option_results}->{units_traffic} eq 'counter') {
+        my $nlabel = $self->{nlabel};
+        $nlabel =~ s/bitspersecond/bits/;
+        $self->{output}->perfdata_add(
+            nlabel => $nlabel,
+            unit => 'b',
+            instances => $self->{result_values}->{name},
+            value => $self->{result_values}->{traffic_counter},
+            warning => $warning,
+            critical => $critical,
+            min => 0
+        );
+    } else {
+        $self->{output}->perfdata_add(
+            nlabel => $self->{nlabel},
+            instances => $self->{result_values}->{name},
+            value => sprintf('%.2f', $self->{result_values}->{traffic_per_seconds}),
+            warning => $warning,
+            critical => $critical,
+            min => 0, max => $self->{result_values}->{speed}
+        );
+    }
+}
+
+sub custom_traffic_threshold {
+    my ($self, %options) = @_;
+
+    my $exit = 'ok';
+    if ($self->{instance_mode}->{option_results}->{units_traffic} eq 'percent_delta' && defined($self->{result_values}->{speed})) {
+        $exit = $self->{perfdata}->threshold_check(value => $self->{result_values}->{traffic_prct}, threshold => [ { label => 'critical-' . $self->{thlabel}, exit_litteral => 'critical' }, { label => 'warning-' . $self->{thlabel}, exit_litteral => 'warning' } ]);
+    } elsif ($self->{instance_mode}->{option_results}->{units_traffic} eq 'bps') {
+        $exit = $self->{perfdata}->threshold_check(value => $self->{result_values}->{traffic_per_seconds}, threshold => [ { label => 'critical-' . $self->{thlabel}, exit_litteral => 'critical' }, { label => 'warning-' . $self->{thlabel}, exit_litteral => 'warning' } ]);
+    } elsif ($self->{instance_mode}->{option_results}->{units_traffic} eq 'counter') {
+        $exit = $self->{perfdata}->threshold_check(value => $self->{result_values}->{traffic_counter}, threshold => [ { label => 'critical-' . $self->{thlabel}, exit_litteral => 'critical' }, { label => 'warning-' . $self->{thlabel}, exit_litteral => 'warning' } ]);
+    }
+    return $exit;
+}
+
+sub custom_traffic_output {
+    my ($self, %options) = @_;
+
+    my ($traffic_value, $traffic_unit) = $self->{perfdata}->change_bytes(value => $self->{result_values}->{traffic_per_seconds}, network => 1);    
+    return sprintf(
+        'traffic %s: %s/s (%s)',
+        $self->{result_values}->{label}, $traffic_value . $traffic_unit,
+        defined($self->{result_values}->{traffic_prct}) ? sprintf('%.2f%%', $self->{result_values}->{traffic_prct}) : '-'
+    );
+}
+
+sub custom_traffic_calc {
+    my ($self, %options) = @_;
+
+    my $diff_traffic = ($options{new_datas}->{ $self->{instance} . '_' . $options{extra_options}->{label_ref} } - $options{old_datas}->{ $self->{instance} . '_' . $options{extra_options}->{label_ref} });
+    $self->{result_values}->{traffic_per_seconds} = $diff_traffic / $options{delta_time};
+    $self->{result_values}->{traffic_counter} = $options{new_datas}->{ $self->{instance} . '_' . $options{extra_options}->{label_ref} };
+    if (defined($options{new_datas}->{$self->{instance} . '_speed_' . $options{extra_options}->{label_ref}}) && 
+        $options{new_datas}->{$self->{instance} . '_speed_' . $options{extra_options}->{label_ref}} > 0) {
+        $self->{result_values}->{traffic_prct} = $self->{result_values}->{traffic_per_seconds} * 100 / $options{new_datas}->{$self->{instance} . '_speed_' . $options{extra_options}->{label_ref}};
+        $self->{result_values}->{speed} = $options{new_datas}->{$self->{instance} . '_speed_' . $options{extra_options}->{label_ref}};
+    }
+
+    $self->{result_values}->{label} = $options{extra_options}->{label_ref};
+    $self->{result_values}->{name} = $options{new_datas}->{ $self->{instance} . '_name' };
+    return 0;
+}
+
+sub prefix_interface_output {
+    my ($self, %options) = @_;
+
+    return "Serial port '" . $options{instance_value}->{name} . "' ";
+}
+
+sub set_counters {
+    my ($self, %options) = @_;
+
+    $self->{maps_counters_type} = [
+        { name => 'interfaces', type => 1, cb_prefix_output => 'prefix_interface_output', message_multiple => 'All interfaces are ok', cb_init_counters => 'skip_counters', skipped_code => { -10 => 1 } },
+    ];
+
+    $self->{maps_counters}->{interfaces} = [
+        { label => 'traffic-in', nlabel => 'serial_port.traffic.in.bitspersecond', set => {
+                key_values => [ { name => 'in', diff => 1 }, { name => 'speed_in' }, { name => 'name' } ],
+                closure_custom_calc => $self->can('custom_traffic_calc'), closure_custom_calc_extra_options => { label_ref => 'in' },
+                closure_custom_output => $self->can('custom_traffic_output'), output_error_template => 'traffic in: %s',
+                closure_custom_perfdata => $self->can('custom_traffic_perfdata'),
+                closure_custom_threshold_check => $self->can('custom_traffic_threshold')
+            }
+        },
+        { label => 'traffic-out', nlabel => 'serial_port.traffic.out.bitspersecond', set => {
+                key_values => [ { name => 'out', diff => 1 }, { name => 'speed_out' }, { name => 'name' } ],
+                closure_custom_calc => $self->can('custom_traffic_calc'), closure_custom_calc_extra_options => { label_ref => 'out' },
+                closure_custom_output => $self->can('custom_traffic_output'), output_error_template => 'traffic out: %s',
+                closure_custom_perfdata => $self->can('custom_traffic_perfdata'),
+                closure_custom_threshold_check => $self->can('custom_traffic_threshold')
+            }
+        }
+    ];
+}
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options, statefile => 1, force_new_perfdata => 1);
+    bless $self, $class;
+
+    $options{options}->add_options(arguments => {
+        'filter-name:s'   => { name => 'filter_name' },
+        'units-traffic:s' => { name => 'units_traffic', default => 'percent_delta' },
+        'speed:s'         => { name => 'speed' }
+    });
+    
+    return $self;
+}
+
+sub check_options {
+    my ($self, %options) = @_;
+    $self->SUPER::check_options(%options);
+
+    if (defined($self->{option_results}->{speed}) && $self->{option_results}->{speed} ne '') {
+        if ($self->{option_results}->{speed} !~ /^[0-9]+(\.[0-9]+){0,1}$/) {
+            $self->{output}->add_option_msg(short_msg => "Speed must be a positive number '" . $self->{option_results}->{speed} . "' (can be a float also).");
+            $self->{output}->option_exit();
+        } else {
+            $self->{option_results}->{speed} *= 1000000;
+        }
+    }
+
+    $self->{option_results}->{units_traffic} = 'percent_delta'
+        if (!defined($self->{option_results}->{units_traffic}) ||
+            $self->{option_results}->{units_traffic} eq '' ||
+            $self->{option_results}->{units_traffic} eq '%');
+    if ($self->{option_results}->{units_traffic} !~ /^(?:percent|percent_delta|bps|counter)$/) {
+        $self->{output}->add_option_msg(short_msg => 'Wrong option --units-traffic.');
+        $self->{output}->option_exit();
+    }
+}
+
+my $mapping = {
+    rxBytes => { oid => '.1.3.6.1.4.1.25049.16.1.1.3' }, # ogSerialPortStatusRxBytes
+    txBytes => { oid => '.1.3.6.1.4.1.25049.16.1.1.4' }, # ogSerialPortStatusTxBytes
+    speed   => { oid => '.1.3.6.1.4.1.25049.16.1.1.5' }  # ogSerialPortStatusSpeed
+};
+
+sub manage_selection {
+    my ($self, %options) = @_;
+
+    if ($options{snmp}->is_snmpv1()) {
+        $self->{output}->add_option_msg(short_msg => 'Need to use SNMP v2c or v3.');
+        $self->{output}->option_exit();
+    }
+
+    my $oid_label = '.1.3.6.1.4.1.25049.16.1.1.11'; # ogSerialPortStatusLabel
+    my $snmp_result = $options{snmp}->get_table(
+        oid => $oid_label,
+        nothing_quit => 1
+    );
+
+    $self->{interfaces} = {};
+    foreach (keys %$snmp_result) {
+        /\.(\d+)$/;
+        my $instance = $1;
+
+        next if (defined($self->{option_results}->{filter_name}) && $self->{option_results}->{filter_name} ne '' &&
+            $snmp_result->{$_} !~ /$self->{option_results}->{filter_name}/);
+
+        $self->{interfaces}->{$instance} = { name => $snmp_result->{$_} };
+    }
+
+    return if (scalar(keys %{$self->{interfaces}}) <= 0);
+
+    $options{snmp}->load(
+        oids => [
+            map($_->{oid}, values(%$mapping))
+        ],
+        instances => [ map($_, keys %{$self->{interfaces}}) ],
+        instance_regexp => '^(.*)$'
+    );
+    $snmp_result = $options{snmp}->get_leef();
+
+    foreach (keys %{$self->{interfaces}}) {
+        my $result = $options{snmp}->map_instance(mapping => $mapping, results => $snmp_result, instance => $_);
+
+        $self->{interfaces}->{$_}->{in} = $result->{rxBytes};
+        $self->{interfaces}->{$_}->{out} = $result->{txBytes};
+        $self->{interfaces}->{$_}->{speed_in} = defined($self->{option_results}->{speed}) ? $self->{option_results}->{speed} : $result->{speed};
+        $self->{interfaces}->{$_}->{speed_out} = defined($self->{option_results}->{speed}) ? $self->{option_results}->{speed} : $result->{speed};
+    }
+
+    $self->{cache_name} = 'opengear_' . $self->{mode} . '_' . $options{snmp}->get_hostname()  . '_' . $options{snmp}->get_port() . '_' .
+        md5_hex(
+            (defined($self->{option_results}->{filter_counters}) ? $self->{option_results}->{filter_counters} : 'all') .
+            (defined($self->{option_results}->{filter_name}) ? $self->{option_results}->{filter_name} : 'all')
+        );
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check serial ports.
+
+=over 8
+
+=item B<--units-traffic>
+
+Units of thresholds for the traffic (Default: 'percent_delta') ('percent_delta', 'bps', 'counter').
+
+=item B<--filter-name>
+
+Filter serial port name (regexp can be used).
+
+=item B<--speed>
+
+Set serial port speed (in Mb).
+
+=item B<--warning-*> B<--critical-*>
+
+Thresholds.
+Can be: 'traffic-in', 'traffic-out'.
+
+=back
+
+=cut
diff --git a/src/network/opengear/snmp/mode/uptime.pm b/src/network/opengear/snmp/mode/uptime.pm
new file mode 100644
index 000000000..fe4cfe6ab
--- /dev/null
+++ b/src/network/opengear/snmp/mode/uptime.pm
@@ -0,0 +1,77 @@
+#
+# Copyright 2023 Centreon (http://www.centreon.com/)
+#
+# Centreon is a full-fledged industry-strength solution that meets
+# the needs in IT infrastructure and application monitoring for
+# service performance.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+package network::opengear::snmp::mode::uptime;
+
+use base qw(snmp_standard::mode::uptime);
+
+use strict;
+use warnings;
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options, force_new_perfdata => 1);
+    bless $self, $class;
+
+    return $self;
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check system uptime.
+
+=over 8
+
+=item B<--warning-uptime>
+
+Threshold warning.
+
+=item B<--critical-uptime>
+
+Threshold critical.
+
+=item B<--add-sysdesc>
+
+Display system description.
+
+=item B<--force-oid>
+
+Can choose your oid (numeric format only).
+
+=item B<--check-overload>
+
+Uptime counter limit is 4294967296 and overflow.
+With that option, we manage the counter going back. But there is a few chance we can miss a reboot.
+
+=item B<--reboot-window>
+
+To be used with check-overload option. Time in milliseconds (Default: 5000)
+You increase the chance of not missing a reboot if you decrease that value.
+
+=item B<--unit>
+
+Select the unit for performance data and thresholds. May be 's' for seconds, 'm' for minutes,
+'h' for hours, 'd' for days, 'w' for weeks.  Default is seconds
+
+=back
diff --git a/src/network/opengear/snmp/plugin.pm b/src/network/opengear/snmp/plugin.pm
new file mode 100644
index 000000000..57aba5ee6
--- /dev/null
+++ b/src/network/opengear/snmp/plugin.pm
@@ -0,0 +1,54 @@
+#
+# Copyright 2023 Centreon (http://www.centreon.com/)
+#
+# Centreon is a full-fledged industry-strength solution that meets
+# the needs in IT infrastructure and application monitoring for
+# service performance.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+package network::opengear::snmp::plugin;
+
+use strict;
+use warnings;
+use base qw(centreon::plugins::script_snmp);
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options);
+    bless $self, $class;
+
+    $self->{modes} = {
+        'cpu-detailed'      => 'network::opengear::snmp::mode::cpudetailed',
+        'interfaces'        => 'network::opengear::snmp::mode::interfaces',
+        'list-interfaces'   => 'snmp_standard::mode::listinterfaces',
+        'list-serial-ports' => 'network::opengear::snmp::mode::listserialports',
+        'load'              => 'network::opengear::snmp::mode::load',
+        'memory'            => 'network::opengear::snmp::mode::memory',
+        'serial-ports'      => 'network::opengear::snmp::mode::serialports',
+        'uptime'            => 'network::opengear::snmp::mode::uptime'
+    };
+
+    return $self;
+}
+
+1;
+
+__END__
+
+=head1 PLUGIN DESCRIPTION
+
+Check Opengear in SNMP.
+
+=cut