diff --git a/pandora_console/godmode/snmpconsole/snmp_alert.php b/pandora_console/godmode/snmpconsole/snmp_alert.php
index 870597bee5..b223d8dafe 100755
--- a/pandora_console/godmode/snmpconsole/snmp_alert.php
+++ b/pandora_console/godmode/snmpconsole/snmp_alert.php
@@ -634,7 +634,7 @@ if ($create_alert || $update_alert) {
 	
 	// OID
 	echo '<tr id="tr-oid">' .
-		'<td class="datos2">' . __('Enterprise String') . '</td>' .
+		'<td class="datos2">' . __('Enterprise String') . ui_print_help_tip (__('Matches substrings. End the string with $ for exact matches.'), true) . '</td>' .
 		'<td class="datos2">';
 	html_print_input_text ("oid", $oid, '', 50, 255);
 	echo '</td></tr>';
diff --git a/pandora_server/lib/PandoraFMS/Core.pm b/pandora_server/lib/PandoraFMS/Core.pm
index c986eb0510..f4485e789b 100644
--- a/pandora_server/lib/PandoraFMS/Core.pm
+++ b/pandora_server/lib/PandoraFMS/Core.pm
@@ -3400,7 +3400,16 @@ sub pandora_evaluate_snmp_alerts ($$$$$$$$$) {
 		$alert->{'oid'} = decode_entities($alert->{'oid'});
 		my $oid = $alert->{'oid'};
 		if ($oid ne '') {
-			next if (index ($trap_oid, $oid) == -1 && index ($trap_oid_text, $oid) == -1);
+			my $term = substr($oid, -1);
+			# Strict match.
+			if ($term eq '$') {
+				chop($oid);
+				next if ($trap_oid ne $oid && $trap_oid_text ne $oid);
+			}
+			# Partial match.
+			else {
+				next if (index ($trap_oid, $oid) == -1 && index ($trap_oid_text, $oid) == -1);
+			}
 			$alert_data .= "OID: $oid ";
 		}