RE: IPX Masks

From: Justin Menga (Justin.Menga@xxxxxxxxxxxxxxxxxx)
Date: Sun Dec 03 2000 - 16:17:51 GMT-3


   
   Hi,
   
   You could filter only on either 0 and 1, 0-3, 0-7 in a single
   statement. Just convert to binary and figure out your bit masks and
   convert back to hex (just like IP but IP is using decimal
   representation of the mask).
   
   e.g. access-list 1200 deny 11110000 FFFFFFF8 would include 11110000
   to 11110007.
   
   Note that the 1200 access-list defines summary routes in IPX NLSP. In
   the above, any networks between 11110000 to 11110007 would be included
   in an aggreagate route of 11110000 FFFFFFF8.
   
   Regards,
   
   Justin Menga MCSE+I CCNP CCSE ASE
   WAN Specialist
   Computerland New Zealand
   PO Box 3631, Auckland
   DDI: (+64) 9 360 4864 Mobile: (+64) 25 349 599
   mailto: justin.menga@computerland.co.nz
   
   -----Original Message-----
   From: damien [mailto:damien@clara.co.uk]
   Sent: Friday, 1 December 2000 8:38 a.m.
   To: ccielab@groupstudy.com
   Subject: IPX Masks
   
   Can anyone explain how IPX Masks work with IPX access lists for NLSP
   redistribution and give some examples..............
   
   
   
   Just as an example, I had the following range of IPX Networks
   11110001....2....3...4 - 9 for example and I wanted to filter the
   first 5....other than extering the following 5 lines, is it possible
   with a single statement or at least less statements to do the same
   job........????
   
   
   
   access-lists 1200 deny 11110002 FFFFFFFF
   
   access-lists 1200deny 11110002 FFFFFFFF
   
   access-lists 1200 deny 11110002 FFFFFFFF
   
   access-lists 1200 deny 11110004 FFFFFFFF
   
   access-lists 1200 deny 11110005 FFFFFFFF
   
   
   
   Any good sources of info........................
   
   
   
   Thanks
   
   
   
   
   
   Damien
   
   
   
   "An expert is a man who has made all the mistakes which can be made,
   in a narrow field" - Niels Bohr
   
   
   
   



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