diff --git a/xCAT-server/lib/xcat/plugins/dhcp.pm b/xCAT-server/lib/xcat/plugins/dhcp.pm
index 8d3888f60..35a7c9994 100644
--- a/xCAT-server/lib/xcat/plugins/dhcp.pm
+++ b/xCAT-server/lib/xcat/plugins/dhcp.pm
@@ -386,7 +386,7 @@ sub process_request
             my @ent = split /\s+/;
             my $firstoctet = $ent[0];
             $firstoctet =~ s/^(\d+)\..*/$1/;
-            if ($ent[0] eq "169.254.0.0" or ($firstoctet >= 224 and $firstoctet <= 239))
+            if ($ent[0] eq "169.254.0.0" or ($firstoctet >= 224 and $firstoctet <= 239) or $ent[0] eq "127.0.0.0")
             {
                 next;
             }
diff --git a/xCAT-server/lib/xcat/plugins/networks.pm b/xCAT-server/lib/xcat/plugins/networks.pm
index e359c5547..7736c7b54 100644
--- a/xCAT-server/lib/xcat/plugins/networks.pm
+++ b/xCAT-server/lib/xcat/plugins/networks.pm
@@ -60,7 +60,7 @@ sub process_request
         my @ent = split /\s+/, $_;
         my $firstoctet = $ent[0];
         $firstoctet =~ s/^(\d+)\..*/$1/;
-        if ($ent[0] eq "169.254.0.0" or ($firstoctet >= 224 and $firstoctet <= 239))
+        if ($ent[0] eq "169.254.0.0" or ($firstoctet >= 224 and $firstoctet <= 239) or $ent[0] eq "127.0.0.0")
         {
             next;
         }