<settings>

  <pluginGroups>
    <pluginGroup>org.inst.maven_inst_plugin</pluginGroup>
  </pluginGroups>
  <mirrors>
    <mirror>
      <id>local central mirror</id>
      <mirrorOf>central</mirrorOf>
     <url>http://maven.corp.org.com:9999/repository/public</url>
   </mirror>
   <mirror>
     <id>local codehaus snapshot mirror</id>
     <mirrorOf>codehaus</mirrorOf>
     <url>http://maven.corp.org.com:9999/proximity/repository/codehaus</url>
   </mirror>
   <mirror>
     <id>local codehaus mirror</id>
     <mirrorOf>codehaus snapshots</mirrorOf>
     <url>http://maven.corp.org.com:9999/proximity/repository/codehaus.snapshot</url>
   </mirror>
   <mirror>
     <id>local jboss mirror</id>
     <mirrorOf>jboss</mirrorOf>
     <url>http://maven.corp.org.com:9999/proximity/repository/jboss</url>
   </mirror>
   <mirror>
     <id>local maven2-repository.dev.java.net mirror</id>
     <mirrorOf>maven2-repository.dev.java.net</mirrorOf>
     <url>http://maven.corp.org.com:9999/repository/maven2-repository.dev.java.net</url>
   </mirror>
   <mirror>
     <id>local apache.snapshot mirror</id>
     <mirrorOf>apache.snapshot</mirrorOf>
     <url>http://maven.corp.org.com:9999/proximity/repository/apache.snapshot</url>
   </mirror>
   <mirror>
     <id>local maven-repository.dev.java.net mirror</id>
     <mirrorOf>maven-repository.dev.java.net</mirrorOf>
     <url>http://maven.corp.org.com:9999/repository/maven-repository.dev.java.net</url>
   </mirror>
   <mirror>
           <id> inhouse snapshot mirror</id>
           <mirrorOf>inhouse.snapshot</mirrorOf>
           <url>http://maven.corp.org.com:9999/repository/inhouse.snapshot</url>
   </mirror>
 </mirrors>
 <profiles>
 </profiles>
 <usePluginRegistry>true</usePluginRegistry>
</settings>

Downloading: http://maven.corp.org.com:9999/repository/public/org/codehaus/cargo/cargo-maven2-plugin/maven-metadata.xml

<repositories>
    <repository>
        <id>java.net</id>
        <url>https://maven.java.net/content/repositories/public/</url>
    </repository>
</repositories>