--- ui/web/base/dns/dns.php.orig
+++ ui/web/base/dns/dns.php     
@@ -35,7 +35,7 @@

 $Ui->Divider( "global_settings" );
 $Ui->IpAddressList( "forwarders", array( "Optional" => 'loud' ) );
 $Ui->IpAddressList( "zone_xfer_ipaddr", array( "Optional" => 'loud') );
-$Ui->Alters( "zone_format", array("rfc2317", "dion", "ocn-jt") );
+$Ui->Alters( "zone_format", array("rfc2317", "dion", "ocn-jt", "infosphere") );

 $Ui->AddSaveButton();


--- handlers/base/dns/dns_generate.pl.orig
+++ handlers/base/dns/dns_generate.pl   
@@ -461,6 +461,12 @@

       "%4h.%3.%2.%1.in-addr.arpa",
       "%1.in-addr.arpa",
     ],
+    'infosphere' => [
+      "SUB%2.%1.in-addr.arpa",
+      "SUB%3.%2.%1.in-addr.arpa",
+      "SUB%4.%3.%2.%1.in-addr.arpa",
+      "%1.in-addr.arpa",
+    ],
   );

   # what zone format should we use?


--- schemas/base/dns/dns.schema.orig
+++ schemas/base/dns/dns.schema 
@@ -2,7 +2,7 @@

 <typedef name="dns_record_type" type="re"
   data="^(A|PTR|CNAME|MX|NS)$"/>
-<typedef name="dns_zone_format" type="re" data="^(rfc2317|dion|ocn-jt)$"/>
+<typedef name="dns_zone_format" type="re" data="^(rfc2317|dion|ocn-jt|infosphere)$"/>

 <!-- global DNS settings -->