diff --git a/interface-definitions/nat66.xml.in b/interface-definitions/nat66.xml.in
index 1518de8bd..32d501cce 100644
--- a/interface-definitions/nat66.xml.in
+++ b/interface-definitions/nat66.xml.in
@@ -1,250 +1,250 @@
 <?xml version="1.0"?>
 <interfaceDefinition>
   <node name="nat66" owner="${vyos_conf_scripts_dir}/nat66.py">
     <properties>
-      <help>IPv6-to-IPv6 Network Prefix Translation (NAT66/NPT) Settings</help>
+      <help>Network Prefix Translation (NAT66/NPTv6) parameters</help>
       <priority>500</priority>
     </properties>
     <children>
       <node name="source">
         <properties>
           <help>Prefix mapping of IPv6 source address translation</help>
         </properties>
         <children>
           <tagNode name="rule">
             <properties>
               <help>Source NAT66 rule number</help>
               <valueHelp>
                 <format>u32:1-999999</format>
                 <description>Number for this rule</description>
               </valueHelp>
               <constraint>
                 <validator name="numeric" argument="--range 1-999999"/>
               </constraint>
               <constraintErrorMessage>NAT66 rule number must be between 1 and 999999</constraintErrorMessage>
             </properties>
             <children>
               #include <include/generic-description.xml.i>
               #include <include/generic-disable-node.xml.i>
               #include <include/nat-exclude.xml.i>
               #include <include/firewall/log.xml.i>
               #include <include/firewall/outbound-interface-no-group.xml.i>
               #include <include/nat/protocol.xml.i>
               <node name="destination">
                 <properties>
                   <help>IPv6 destination prefix options</help>
                 </properties>
                 <children>
                   <leafNode name="prefix">
                     <properties>
                       <help>IPv6 prefix to be translated</help>
                       <valueHelp>
                         <format>ipv6net</format>
                         <description>IPv6 prefix</description>
                       </valueHelp>
                       <valueHelp>
                         <format>!ipv6net</format>
                         <description>Match everything except the specified IPv6 prefix</description>
                       </valueHelp>
                       <constraint>
                         <validator name="ipv6-prefix"/>
                         <validator name="ipv6-prefix-exclude"/>
                       </constraint>
                     </properties>
                   </leafNode>
                   #include <include/nat-port.xml.i>
                 </children>
               </node>
               <node name="source">
                 <properties>
                   <help>IPv6 source prefix options</help>
                 </properties>
                 <children>
                   <leafNode name="prefix">
                     <properties>
                       <help>IPv6 prefix to be translated</help>
                       <valueHelp>
                         <format>ipv6net</format>
                         <description>IPv6 prefix</description>
                       </valueHelp>
                       <valueHelp>
                         <format>!ipv6net</format>
                         <description>Match everything except the specified IPv6 prefix</description>
                       </valueHelp>
                       <constraint>
                         <validator name="ipv6-prefix"/>
                         <validator name="ipv6-prefix-exclude"/>
                       </constraint>
                     </properties>
                   </leafNode>
                   #include <include/nat-port.xml.i>
                 </children>
               </node>
               <node name="translation">
                 <properties>
                   <help>Translated IPv6 address options</help>
                 </properties>
                 <children>
                   <leafNode name="address">
                     <properties>
                       <help>IPv6 address to translate to</help>
                       <completionHelp>
                         <list>masquerade</list>
                       </completionHelp>
                       <valueHelp>
                         <format>ipv6</format>
                         <description>IPv6 address</description>
                       </valueHelp>
                       <valueHelp>
                         <format>ipv6net</format>
                         <description>IPv6 prefix</description>
                       </valueHelp>
                       <valueHelp>
                         <format>masquerade</format>
                         <description>NAT to the primary address of outbound-interface</description>
                       </valueHelp>
                       <constraint>
                         <validator name="ipv6-address"/>
                         <validator name="ipv6-prefix"/>
                         <regex>(masquerade)</regex>
                       </constraint>
                     </properties>
                   </leafNode>
                   #include <include/nat-translation-port.xml.i>
                 </children>
               </node>
             </children>
           </tagNode>
         </children>
       </node>
       <node name="destination">
         <properties>
           <help>Prefix mapping for IPv6 destination address translation</help>
         </properties>
         <children>
           <tagNode name="rule">
             <properties>
               <help>Destination NAT66 rule number</help>
               <valueHelp>
                 <format>u32:1-999999</format>
                 <description>Number for this rule</description>
               </valueHelp>
               <constraint>
                 <validator name="numeric" argument="--range 1-999999"/>
               </constraint>
               <constraintErrorMessage>NAT66 rule number must be between 1 and 999999</constraintErrorMessage>
             </properties>
             <children>
               #include <include/generic-description.xml.i>
               #include <include/generic-disable-node.xml.i>
               #include <include/nat-exclude.xml.i>
               <leafNode name="log">
                 <properties>
                   <help>NAT66 rule logging</help>
                   <valueless/>
                 </properties>
               </leafNode>
               #include <include/firewall/inbound-interface-no-group.xml.i>
               #include <include/nat/protocol.xml.i>
               <node name="destination">
                 <properties>
                   <help>IPv6 destination prefix options</help>
                 </properties>
                 <children>
                   <leafNode name="address">
                     <properties>
                       <help>IPv6 address or prefix to be translated</help>
                       <valueHelp>
                         <format>ipv6</format>
                         <description>IPv6 address</description>
                       </valueHelp>
                       <valueHelp>
                         <format>ipv6net</format>
                         <description>IPv6 prefix</description>
                       </valueHelp>
                       <valueHelp>
                         <format>!ipv6</format>
                         <description>Match everything except the specified IPv6 address</description>
                       </valueHelp>
                       <valueHelp>
                         <format>!ipv6net</format>
                         <description>Match everything except the specified IPv6 prefix</description>
                       </valueHelp>
                       <constraint>
                         <validator name="ipv6-address"/>
                         <validator name="ipv6-prefix"/>
                         <validator name="ipv6-address-exclude"/>
                         <validator name="ipv6-prefix-exclude"/>
                       </constraint>
                     </properties>
                   </leafNode>
                   #include <include/nat-port.xml.i>
                 </children>
               </node>
               <node name="source">
                 <properties>
                   <help>IPv6 source prefix options</help>
                 </properties>
                 <children>
                   <leafNode name="address">
                     <properties>
                       <help>IPv6 address or prefix to be translated</help>
                       <valueHelp>
                         <format>ipv6</format>
                         <description>IPv6 address</description>
                       </valueHelp>
                       <valueHelp>
                         <format>ipv6net</format>
                         <description>IPv6 prefix</description>
                       </valueHelp>
                       <valueHelp>
                         <format>!ipv6</format>
                         <description>Match everything except the specified IPv6 address</description>
                       </valueHelp>
                       <valueHelp>
                         <format>!ipv6net</format>
                         <description>Match everything except the specified IPv6 prefix</description>
                       </valueHelp>
                       <constraint>
                         <validator name="ipv6-address"/>
                         <validator name="ipv6-prefix"/>
                         <validator name="ipv6-address-exclude"/>
                         <validator name="ipv6-prefix-exclude"/>
                       </constraint>
                     </properties>
                   </leafNode>
                 #include <include/nat-port.xml.i>
                 </children>
               </node>
               <node name="translation">
                 <properties>
                   <help>Translated IPv6 address options</help>
                 </properties>
                 <children>
                   <leafNode name="address">
                     <properties>
                       <help>IPv6 address or prefix to translate to</help>
                       <valueHelp>
                         <format>ipv6</format>
                         <description>IPv6 address</description>
                       </valueHelp>
                       <valueHelp>
                         <format>ipv6net</format>
                         <description>IPv6 prefix</description>
                       </valueHelp>
                       <constraint>
                         <validator name="ipv6-address"/>
                         <validator name="ipv6-prefix"/>
                       </constraint>
                     </properties>
                   </leafNode>
                   #include <include/nat-translation-port.xml.i>
                 </children>
               </node>
             </children>
           </tagNode>
         </children>
       </node>
     </children>
   </node>
 </interfaceDefinition>