samba - Feb 2013 - Trying to Join a Working W2K3 AD

I'm trying to join a freshly compiled 4.0.3 installation as an  
additional DC to an existing W2K3 AD according to:

https://wiki.samba.org/index.php/Samba4/HOWTO/Join_a_domain_as_a_DC

I have built samba 4.0.3 on CentOS 6.3 x86_64. I am using the method  
that describes using the built in dns.

I get to the step /usr/local/samba/bin/samba-tool dns add  
192.168.1.252 _msdcs.domain.co.il 2d59ac49-1175-4656-943e-d556baa242cb  
CNAME DC2.domain.co.il -Uadministrator

I get the following error message:

ERROR(runtime): uncaught exception - (9601,  
'WERR_DNS_ERROR_ZONE_DOES_NOT_EXIST')
   File  
"/usr/local/samba/lib64/python2.6/site-packages/samba/netcmd/__init__.py",
line 175, in _run
     return self.run(*args, **kwargs)
   File  
"/usr/local/samba/lib64/python2.6/site-packages/samba/netcmd/dns.py",
line 1053, in run
     0, server, zone, name, add_rec_buf, None)

And, of course, without proper DNS configuration I can not get  
replication to work.

Have I done something wrong? How can I resolve this?

Thanks

Eli


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