Thanks James.  That's very useful info!

James_Shanks AT tivoli DOT com writes:
> Folks -
> 
> The lead author of this publication just sent me a flash.  Extending
> Network Management Through Firewalls, SG24-6229-00,
> the new redbook I wrote about, is available on-line for viewing prior to
> publication as a "redpiece",  which is IBM jargon for a redbook which isn't
> finished yet.  This one is done except for the editing and is well worth
> reading if you are trying to do this.  Projected availability for the
> hardcopy is April, 2001.  In the meantime, if you can get to
>      http://www.redbooks.ibm.com/
> select "redpieces" and search for "sg246229"  and  open it or download it
> in Adobe pdf format,
> 
> James Shanks
> Team Leader, Level 3 Support
>  Tivoli NetView for UNIX and NT