<?xml version="1.0"?> <interfaceDefinition> <node name="interfaces"> <children> <tagNode name="loopback" owner="${vyos_conf_scripts_dir}/interfaces-loopback.py"> <properties> <help>Loopback Interface</help> <priority>300</priority> <constraint> <regex>^lo$</regex> </constraint> <constraintErrorMessage>Loopback interface must be named lo</constraintErrorMessage> <valueHelp> <format>lo</format> <description>Loopback interface</description> </valueHelp> </properties> <children> #include <include/address-ipv4-ipv6.xml.i> #include <include/interface-description.xml.i> </children> </tagNode> </children> </node> </interfaceDefinition>