default host tag

list Thomas Pedersen
Tue, 04 Oct 2005 14:29:18 +0200
Message-Id: <user-79741059f2a1@xymon.invalid>

How should I understand the .default. host tag. Ie should I put the 
following in my bb-hosts

0.0.0.0 .default. # myspecialtag

or

0.0.0.0 .default. # nodisp myspecialtag

Regards,

Thomas Pedersen