Kerberos and NTLM Authentication protocol

[". ." <chirobado () hotmail com>]

In a domain with DC 2003 and clients all windows 2000 and XP:

* ¿Is there any important reason to change de LMCompatibility level to 
prevent using LM/NTLM and use only NTLMv2 in both clients and DCs?

As far as I know, in this enviroment, authentication agains DC is set 
through Kerberos v5. Keberos uses the NT Hash, but no NTLM authentication 
protocol at all.

If there is no case where NTLM or LM authentication protocol is needed (it 
would be needed just between clients, but no w9x or nt clients in the 
network)... is there any reason to be "worried"?

Thanks.

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