diff --git a/resources/templates/provision/grandstream/grp261x/{$mac}.xml b/resources/templates/provision/grandstream/grp261x/{$mac}.xml
index 68dbecda4f..17fc90c8de 100644
--- a/resources/templates/provision/grandstream/grp261x/{$mac}.xml
+++ b/resources/templates/provision/grandstream/grp261x/{$mac}.xml
@@ -737,7 +737,17 @@
 		<!-- Ethernet Settings -->
 		<!-- Preferred Internet Protocol -->
 		<!-- BothAndPreferIPv4, BothAndPreferIPv6, IPv4Only, IPv6Only -->
-		<item name="network.internetProtocol">IPv4Only</item>
+		{if $grandstream_ipv_mode=='0'}
+		    <item name="network.internetProtocol">BothAndPreferIPv4</item>
+		    {elseif $grandstream_ipv_mode=='1'}
+		    <item name="network.internetProtocol">BothAndPreferIPv6</item>
+		    {elseif $grandstream_ipv_mode=='2'}
+		    <item name="network.internetProtocol">IPv4Only</item>
+		    {elseif $grandstream_ipv_mode=='3'}
+		    <item name="network.internetProtocol">IPv6Only</item>
+		    {else}
+		    <item name="network.internetProtocol">BothAndPreferIPv4</item>
+		{/if}
 
 		<!-- IPv4 Address Type -->
 		<!-- DHCP, StaticIP, PPPoE -->
diff --git a/resources/templates/provision/grandstream/gxv3370/{$mac}.xml b/resources/templates/provision/grandstream/gxv3370/{$mac}.xml
index fb629e672b..d5b262f843 100644
--- a/resources/templates/provision/grandstream/gxv3370/{$mac}.xml
+++ b/resources/templates/provision/grandstream/gxv3370/{$mac}.xml
@@ -666,7 +666,17 @@
 		<!-- Ethernet Settings -->
 		<!-- Preferred Internet Protocol -->
 		<!-- BothAndPreferIPv4, BothAndPreferIPv6, IPv4Only, IPv6Only -->
-		<item name="network.internetProtocol">BothAndPreferIPv4</item>
+		{if $grandstream_ipv_mode=='0'}
+			<item name="network.internetProtocol">BothAndPreferIPv4</item>
+			{elseif $grandstream_ipv_mode=='1'}
+			<item name="network.internetProtocol">BothAndPreferIPv6</item>
+			{elseif $grandstream_ipv_mode=='2'}
+			<item name="network.internetProtocol">IPv4Only</item>
+			{elseif $grandstream_ipv_mode=='3'}
+			<item name="network.internetProtocol">IPv6Only</item>
+			{else}
+			<item name="network.internetProtocol">BothAndPreferIPv4</item>
+		{/if} 
 		<!-- IPv4 Address Type -->
 		<!-- DHCP, StaticIP, PPPoE -->
 		<item name="network.port.eth.1.type">DHCP</item>