samba - Aug 2007 - Too many 445 and 139 packets

I?m having problems with my intranet, all computers that log into my
Samba?s PDC, are sending many netbios and microsoft-ds packets. this problem
started since last week, i already blocked port 139 with my iptables, but if
i block 139 and 445, the computers cant access smb shares.
can anyone help me?

Hallo, Diogo,

Du (diogojapa) meintest am 09.08.07:
>   I?m having problems with my intranet, all computers that log into
> my Samba?s PDC, are sending many netbios and microsoft-ds packets.
> this problem started since last week, i already blocked port 139 with
> my iptables, but if i block 139 and 445, the computers cant access
> smb shares. can anyone help me?
You should allow 137, 138 and 139 for the intranet (at least 138 seems  
to be only UPD).
And you shoudn't allow 445 - together with 139 (?) it produces other  
error messages, even listed in the Samba documentation.

Viele Gruesse!
Helmut