Merge pull request #2174 from rosysong/lease-status

luci-base: drop ipv6 lease status when IPV6 is not support

modules/luci-base/luasrc/view/lease_status.htm

@@ -79,7 +79,13 @@
 	</div>
 </div>
 
-<div class="cbi-section" style="display:none">
+<%
+	local fs = require "nixio.fs"
+	local has_ipv6 = fs.access("/proc/net/ipv6_route")
+
+	if has_ipv6 then
+-%>
+	<div class="cbi-section" style="display:none">
 		<h3><%:Active DHCPv6 Leases%></h3>
 		<div class="table" id="lease6_status_table">
 			<div class="tr table-titles">
@@ -92,4 +98,5 @@
 				<div class="td"><em><%:Collecting data...%></em></div>
 			</div>
 		</div>
-</div>
+	</div>
+<% end -%>