From: John Matus (john_matus@hotmail.com)
Date: Wed Jun 08 2005 - 01:57:08 GMT-3
ok,
you have networks 30.1.1.0 and 30.1.2.0. you want to deny anything with
an odd 3rd octed
now, i alway thought that you the access-list should be:
access-list 1 deny 30.1.0.0 0.0.1.255 since you are matching anything
with the last bit set to 1,
or
to deny any thing even you should use:
access-list 1 deny 30.1.0.0 0.0.255.255 since only numbers with the least
significant bit set to zero are even................but lately when i've
been configuring offset-lists my findings have been just the opposite as
anticipated....
it this correct?
as a side note, in the 1st example you can actually use "deny 30.1.0.0
0.0.1.0" yeah? since you don't need to match the 1, 2, or 4th bit <?>
just trying to get my fact nailed down!
tia
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