ass="form-control form"
                      id="Ipv4Cmd"
                      name="Ipv4Cmd"
                      aria-describedby="Ipv4CmdHelp"
                      data-visible="cmd"
                    />
                    <small
                      data-i18n-html="Ipv4UrlHelp"
                      id="Ipv4UrlHelp"
                      class="form-text text-muted"
                      data-visible="url"
                    ></small>
                    <small
                      {{if len .I