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+<?xml version="1.0"?>
+<interfaceDefinition>
+ <node name="nat">
+ <children>
+ <node name="cgnat" owner="${vyos_conf_scripts_dir}/nat_cgnat.py">
+ <properties>
+ <help>Carrier-grade NAT (CGNAT) parameters</help>
+ <priority>221</priority>
+ </properties>
+ <children>
+ <node name="pool">
+ <properties>
+ <help>External and internal pool parameters</help>
+ </properties>
+ <children>
+ <tagNode name="external">
+ <properties>
+ <help>External pool name</help>
+ <valueHelp>
+ <format>txt</format>
+ <description>External pool name</description>
+ </valueHelp>
+ <constraint>
+ #include <include/constraint/alpha-numeric-hyphen-underscore-dot.xml.i>
+ </constraint>
+ <constraintErrorMessage>Name of pool can only contain alpha-numeric letters, hyphen and underscores</constraintErrorMessage>
+ </properties>
+ <children>
+ <leafNode name="external-port-range">
+ <properties>
+ <help>Port range</help>
+ <valueHelp>
+ <format>range</format>
+ <description>Numbered port range (e.g., 1001-1005)</description>
+ </valueHelp>
+ <constraint>
+ <validator name="port-range"/>
+ </constraint>
+ </properties>
+ <defaultValue>1024-65535</defaultValue>
+ </leafNode>
+ <node name="per-user-limit">
+ <properties>
+ <help>Per user limits for the pool</help>
+ </properties>
+ <children>
+ <leafNode name="port">
+ <properties>
+ <help>Ports per user</help>
+ <valueHelp>
+ <format>u32:1-65535</format>
+ <description>Numeric IP port</description>
+ </valueHelp>
+ <constraint>
+ <validator name="numeric" argument="--range 1-65535"/>
+ </constraint>
+ </properties>
+ <defaultValue>2000</defaultValue>
+ </leafNode>
+ </children>
+ </node>
+ <tagNode name="range">
+ <properties>
+ <help>Range of IP addresses</help>
+ <valueHelp>
+ <format>ipv4net</format>
+ <description>IPv4 prefix</description>
+ </valueHelp>
+ <valueHelp>
+ <format>ipv4range</format>
+ <description>IPv4 address range</description>
+ </valueHelp>
+ <constraint>
+ <validator name="ipv4-prefix"/>
+ <validator name="ipv4-host"/>
+ <validator name="ipv4-range"/>
+ </constraint>
+ </properties>
+ <children>
+ <leafNode name="seq">
+ <properties>
+ <help>Sequence</help>
+ <valueHelp>
+ <format>u32:1-999999</format>
+ <description>Sequence number</description>
+ </valueHelp>
+ <constraint>
+ <validator name="numeric" argument="--range 1-999999"/>
+ </constraint>
+ <constraintErrorMessage>Sequence number must be between 1 and 999999</constraintErrorMessage>
+ </properties>
+ </leafNode>
+ </children>
+ </tagNode>
+ </children>
+ </tagNode>
+ <tagNode name="internal">
+ <properties>
+ <help>Internal pool name</help>
+ <valueHelp>
+ <format>txt</format>
+ <description>Internal pool name</description>
+ </valueHelp>
+ <constraint>
+ #include <include/constraint/alpha-numeric-hyphen-underscore-dot.xml.i>
+ </constraint>
+ <constraintErrorMessage>Name of pool can only contain alpha-numeric letters, hyphen and underscores</constraintErrorMessage>
+ </properties>
+ <children>
+ <leafNode name="range">
+ <properties>
+ <help>Range of IP addresses</help>
+ <valueHelp>
+ <format>ipv4net</format>
+ <description>IPv4 prefix</description>
+ </valueHelp>
+ <valueHelp>
+ <format>ipv4range</format>
+ <description>IPv4 address range</description>
+ </valueHelp>
+ <constraint>
+ <validator name="ipv4-prefix"/>
+ <validator name="ipv4-host"/>
+ <validator name="ipv4-range"/>
+ </constraint>
+ </properties>
+ </leafNode>
+ </children>
+ </tagNode>
+ </children>
+ </node>
+ <tagNode name="rule">
+ <properties>
+ <help>Rule</help>
+ <valueHelp>
+ <format>u32:1-999999</format>
+ <description>Number for this CGNAT rule</description>
+ </valueHelp>
+ <constraint>
+ <validator name="numeric" argument="--range 1-999999"/>
+ </constraint>
+ <constraintErrorMessage>Rule number must be between 1 and 999999</constraintErrorMessage>
+ </properties>
+ <children>
+ <node name="source">
+ <properties>
+ <help>Source parameters</help>
+ </properties>
+ <children>
+ <leafNode name="pool">
+ <properties>
+ <help>Source internal pool</help>
+ <completionHelp>
+ <path>nat cgnat pool internal</path>
+ </completionHelp>
+ <valueHelp>
+ <format>txt</format>
+ <description>Source internal pool name</description>
+ </valueHelp>
+ <constraint>
+ #include <include/constraint/alpha-numeric-hyphen-underscore-dot.xml.i>
+ </constraint>
+ <constraintErrorMessage>Name of pool can only contain alpha-numeric letters, hyphen and underscores</constraintErrorMessage>
+ </properties>
+ </leafNode>
+ </children>
+ </node>
+ <node name="translation">
+ <properties>
+ <help>Translation parameters</help>
+ </properties>
+ <children>
+ <leafNode name="pool">
+ <properties>
+ <help>Translation external pool</help>
+ <completionHelp>
+ <path>nat cgnat pool external</path>
+ </completionHelp>
+ <valueHelp>
+ <format>txt</format>
+ <description>Translation external pool name</description>
+ </valueHelp>
+ <constraint>
+ #include <include/constraint/alpha-numeric-hyphen-underscore-dot.xml.i>
+ </constraint>
+ <constraintErrorMessage>Name of pool can only contain alpha-numeric letters, hyphen and underscores</constraintErrorMessage>
+ </properties>
+ </leafNode>
+ </children>
+ </node>
+ </children>
+ </tagNode>
+ </children>
+ </node>
+ </children>
+ </node>
+</interfaceDefinition>