From 8fc48e7a21274c11253cb7f881c9a4962defc672 Mon Sep 17 00:00:00 2001
From: ligc <liguangc@cn.ibm.com>
Date: Tue, 2 Jun 2015 23:43:53 -0400
Subject: [PATCH] do not try to add ipv6 networks into dhcp if there is no ipv6
 network in networks table

---
 xCAT-server/lib/xcat/plugins/dhcp.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xCAT-server/lib/xcat/plugins/dhcp.pm b/xCAT-server/lib/xcat/plugins/dhcp.pm
index 90e96c252..96ef87cf7 100755
--- a/xCAT-server/lib/xcat/plugins/dhcp.pm
+++ b/xCAT-server/lib/xcat/plugins/dhcp.pm
@@ -2078,6 +2078,7 @@ sub putmyselffirst {
 sub addnet6
 {
     if ($::XCATSITEVALS{externaldhcpservers}) { return; }
+    if (!$usingipv6) { return; }
     my $netentry = shift;
     my $net = $netentry->{net};
     my $iface = $netentry->{iface};