diff --git a/docs/api/uci/cwmp.md b/docs/api/uci/cwmp.md
index 3879e88..3a5c564 100644
--- a/docs/api/uci/cwmp.md
+++ b/docs/api/uci/cwmp.md
@@ -417,6 +417,15 @@
                     <td class="td_row_even"><div class="td_row_even"></div></td>
                     <td class="td_row_even"><div class="td_row_even">This configure firewall rules. Allowed values <IP_Only/Port_Only/IP_Port>. IP_Only means only acs ip as source ip used for firewall input rule, Port_Only means only destination port will be used and IP_Port or empty value meaning both ip and port will be used for firewall input rule.</div></td>
                   </tr>
+                  <tr>
+                    <td class="td_row_odd"><div class="td_row_odd">force_ipv4</div></td>
+                    <td class="td_row_odd"><div class="td_row_odd">boolean</div></td>
+                    <td class="td_row_odd"><div class="td_row_odd">no</div></td>
+                    <td class="td_row_odd"><div class="td_row_odd"></div></td>
+                    <td class="td_row_odd">
+                      <div class="td_row_odd">If set to <b>1</b>, it forces the connectivity over v4 IP address.</div>
+                    </td>
+                  </tr>
                 </tbody>
               </table>
             </td>
diff --git a/src/common.c b/src/common.c
index f827a19..684ebb7 100755
--- a/src/common.c
+++ b/src/common.c
@@ -792,6 +792,9 @@ static bool is_ipv6_addr_available(const char *device)
 
 bool is_ipv6_enabled(void)
 {
+	if (cwmp_main->conf.force_ipv4 == true)
+		return false;
+
 	if (CWMP_STRLEN(cwmp_main->net.interface) == 0) {
 		struct blob_buf b = {0};
 		char network_interface[64];
diff --git a/src/common.h b/src/common.h
index 8546694..9c3fc8a 100644
--- a/src/common.h
+++ b/src/common.h
@@ -155,6 +155,7 @@ typedef struct config {
 	unsigned int session_timeout;
 	bool http_disable_100continue;
 	int cr_timeout;
+	bool force_ipv4;
 } config;
 
 struct deviceid {
diff --git a/src/config.c b/src/config.c
index 836ca08..476a8f6 100755
--- a/src/config.c
+++ b/src/config.c
@@ -66,6 +66,7 @@ static void config_get_cpe_elements(struct uci_section *s)
 		UCI_CPE_SESSION_TIMEOUT,
 		UCI_CPE_INSTANCE_MODE,
 		UCI_CPE_JSON_CUSTOM_NOTIFY_FILE,
+		UCI_CPE_FORCE_IPV4,
 		__MAX_NUM_UCI_CPE_ATTRS,
 	};
 
@@ -83,7 +84,8 @@ static void config_get_cpe_elements(struct uci_section *s)
 		[UCI_CPE_SESSION_TIMEOUT] = { .name = "session_timeout", .type = UCI_TYPE_STRING },
 		[UCI_CPE_INSTANCE_MODE] = { .name = "instance_mode", .type = UCI_TYPE_STRING },
 		[UCI_CPE_JSON_CUSTOM_NOTIFY_FILE] = { .name = "custom_notify_json", .type = UCI_TYPE_STRING },
-		[UCI_CPE_CON_REQ_TIMEOUT] = { .name = "cr_timeout", .type = UCI_TYPE_STRING }
+		[UCI_CPE_CON_REQ_TIMEOUT] = { .name = "cr_timeout", .type = UCI_TYPE_STRING },
+		[UCI_CPE_FORCE_IPV4] = { .name = "force_ipv4", .type = UCI_TYPE_STRING }
 	};
 
 	struct uci_option *cpe_tb[__MAX_NUM_UCI_CPE_ATTRS];
@@ -176,6 +178,10 @@ static void config_get_cpe_elements(struct uci_section *s)
 
 	snprintf(cwmp_main->conf.custom_notify_json, sizeof(cwmp_main->conf.custom_notify_json), "%s", get_value_from_uci_option(cpe_tb[UCI_CPE_JSON_CUSTOM_NOTIFY_FILE]));
 	CWMP_LOG(DEBUG, "CWMP CONFIG - cpe custom notify json path: %s", cwmp_main->conf.custom_notify_json);
+
+	cwmp_main->conf.force_ipv4 = uci_str_to_bool(get_value_from_uci_option(cpe_tb[UCI_CPE_FORCE_IPV4]));
+	CWMP_LOG(DEBUG, "CWMP CONFIG - cpe force ipv4 enable: %d", cwmp_main->conf.force_ipv4);
+
 }
 
 static void config_get_acs_elements(struct uci_section *s)