diff --git a/debian/ogdhcp.postinst b/debian/ogdhcp.postinst
index 498604e..864b4d3 100644
--- a/debian/ogdhcp.postinst
+++ b/debian/ogdhcp.postinst
@@ -24,6 +24,28 @@ restore_config_if_modified() {
 }
 
 
+# Añade el hook lease-cmds a kea-dhcp4.conf solo si no está ya presente
+ensure_lease_cmds_hook() {
+    local config="$1"
+    local lib="$2"
+
+    [ -f "$config" ] || return 0
+    [ -n "$lib" ] || return 0
+
+    if grep -q "libdhcp_lease_cmds" "$config"; then
+        echo "El hook lease-cmds ya está presente en $config, no se añade de nuevo."
+        return 0
+    fi
+
+    echo "Añadiendo hook lease-cmds a $config..."
+    local tmp
+    tmp=$(mktemp)
+    jq --arg lib "$lib" \
+        '.Dhcp4["hooks-libraries"] = (.Dhcp4["hooks-libraries"] // []) + [{"library": $lib}]' \
+        "$config" > "$tmp" && mv "$tmp" "$config"
+    chown _kea:_kea "$config"
+}
+
 KEA_CTRL_AGENT_CONF="/etc/kea/kea-ctrl-agent.conf"
 PUBLIC_DIR=/opt/opengnsys/ogdhcp/api/public
 db_get opengnsys/ogdhcp_interfaces
@@ -95,13 +117,23 @@ EOF
             echo "Configurando kea-dhcp4..."
             IFS=',' read -r -a INTERFACES <<< "$OGDHCP_INTERFACES"
             KEA_CONFIG="/etc/kea/kea-dhcp4.conf"
+
+            # Detectar la ruta de libdhcp_lease_cmds.so (varía según arquitectura)
+            LEASE_CMDS_LIB=$(find /usr/lib -name "libdhcp_lease_cmds.so" 2>/dev/null | head -1)
+            if [ -z "$LEASE_CMDS_LIB" ]; then
+                echo "Advertencia: no se encontró libdhcp_lease_cmds.so. El hook lease-cmds no estará activo."
+            else
+                echo "Librería lease-cmds encontrada en: $LEASE_CMDS_LIB"
+            fi
+
             if [ -e "$KEA_CONFIG" ]; then
                 dpkg-divert --package ogdhcp --divert "$KEA_CONFIG.dpkg-dist" --rename "$KEA_CONFIG"
+                # El fichero se genera desde cero, no hay riesgo de duplicación
                 cat > "$KEA_CONFIG" <<EOF
 {
     "Dhcp4": {
         "interfaces-config": {
-            "interfaces": [ $( 
+            "interfaces": [ $(
                 for interface in "${INTERFACES[@]}"; do
                     echo "\"$interface\""
                 done | paste -sd "," -
@@ -128,6 +160,8 @@ EOF
     }
 }
 EOF
+                # Añadir el hook tras generar el fichero (la función verifica que no esté ya)
+                ensure_lease_cmds_hook "$KEA_CONFIG" "$LEASE_CMDS_LIB"
         fi
         else
 
@@ -137,6 +171,10 @@ EOF
             restore_config_if_modified "/opt/opengnsys/ogdhcp/api/.env"
             restore_config_if_modified "/etc/nginx/sites-available/ogdhcp.conf"
             restore_config_if_modified "/etc/php/$PHP_VERSION/fpm/pool.d/ogdhcp.conf"
+
+            # En upgrade: añadir el hook si se instaló kea-hook-lease-cmds y no estaba configurado
+            LEASE_CMDS_LIB=$(find /usr/lib -name "libdhcp_lease_cmds.so" 2>/dev/null | head -1)
+            ensure_lease_cmds_hook "/etc/kea/kea-dhcp4.conf" "$LEASE_CMDS_LIB"
         fi 
         echo ">>> Configuración de ogdhcp completada."
     ;;