               for="Ipv6Reg"
                    class="col-sm-2 col-form-label"
                    >Regular exp.</label
                  >
                  <div class="col-sm-10">
                    <input
                      class="form-control form"
                      name="Ipv6Reg"
                      id="Ipv6Reg"
                      aria-describedby="Ipv6RegHelp"
                    />
                    <small
                      data-i18n-html="regHelp"
                      id="Ipv6R