<leafNode name="source-address"> <properties> <help>IPv4/IPv6 source address</help> <valueHelp> <format>ipv4</format> <description>IPv4 source-address</description> </valueHelp> <valueHelp> <format>ipv6</format> <description>IPv6 source-address</description> </valueHelp> <constraint> <validator name="ipv4-address"/> <validator name="ipv6-address"/> </constraint> </properties> </leafNode>