Not explained in bits, but that is what I always tell ppl a clean way to do: 2 things: subnet mask, wildcard mask. You should be well comfortable with what a subnet mask is. So, take the host mask, 255.255.255.255. When you want a wildcard mask, subtract subnet mask from the host mask decimal by decimal. e.g. to deny a class C network, your netmask is 255.255.255.0, host mask - netmask = 0.0.0.255, which is your wildcard mask. therefore the list look like: access-list 1 deny 192.168.1.0 0.0.0.255 And thus a wildcard mask corresponding to 255.255.128.0 would be 0.0.127.255.
HTH Gary ""Joseph Haynes"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > I was wondering if anyone could assist me in better understanding wildcard > masks. Perhaps a website or book you came across during your studies. Any > assistance would be most appreciated. I plan to take my test in a month and > I am having problems with this aspect. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=25729&t=25728 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
