From 9bb362074889c5f9f4d15589ce6d92b80b1cbfd5 Mon Sep 17 00:00:00 2001
From: sjing <sjing@8638fb3e-16cb-4fca-ae20-7b5d299a9bcd>
Date: Fri, 29 Jul 2011 07:00:45 +0000
Subject: [PATCH] Sync fix from ddns.pm to dhcp.pm for bug 3323752.

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@10192 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
---
 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 63c99a747..2d1156200 100644
--- a/xCAT-server/lib/xcat/plugins/dhcp.pm
+++ b/xCAT-server/lib/xcat/plugins/dhcp.pm
@@ -1349,6 +1349,7 @@ sub getzonesfornet {
             die "Not supporting having a mask like $mask on an ipv6 network like $net";
         }
         my $netnum= getipaddr($net,GetNumber=>1);
+        unless ($netnum) { return (); }
         $netnum->brsft(128-$maskbits);
         my $prefix=$netnum->as_hex();
         my $nibbs=$maskbits/4;