Win2k Kerberos DNS Look-up Causes ICS to Dial ISP

From: Bill Wallenmeyer (Bill.Wallenmeyer@PA.Net)
Date: 08/31/02 

From: Bill.Wallenmeyer@PA.Net (Bill Wallenmeyer)
Date: 31 Aug 2002 09:26:16 -0700

I have a network at my office, running TCP/IP. I recently turned-on
Internet Connection Sharing with a Windows 98 machine as the host
and a Windows 2000 machine as the client. It is a static IP address
configuration. Everything is working well with the exception that
when I start this one program on the Windows 2000 machine that
accesses a database on an NT 4.0 workstation in the office, it
makes the Windows 98 ICS Host dial-out to my ISP. Using some packet
capturing software, I think the Windows 2000 machine is doing a
DNS query on _kerberos._tcp.dc._msdcs.NTWORK. NTWORK is the name
of the NT 4.0 workstation where the database resides. When I run
this program on the Windows 98 machine, it does not dial-out. I
already tried adding an LMHOSTS entry for
_kerberos._tcp.dc._msdcs.NTWORK with the #PRE parameter on the
Win2k machine to see if I could get it to not do a DNS lookup
but that did not work. If I remove the hard-coded DNS address in
the TCP/IP settings on the Win2k machine, it does not cause the
ICS host to dial-up the ISP.

Is there some IP security setting on the Windows 2000 machine that
I can tweak to get rid of this behavior? I'm open to any
suggestions.

Thanks.

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