From: Sorin Suru (sorin3177@xxxxxxxxxxx)
Date: Tue Apr 10 2001 - 22:19:54 GMT-3
Got it. Thank you, very much.
>From: Les Hardin <hardinl@bah.com>
>Reply-To: Les Hardin <hardinl@bah.com>
>To: "Sorin Suru" <sorin3177@hotmail.com>, ccielab@groupstudy.com
>Subject: Re: blocking ipx networks
>Date: Tue, 10 Apr 2001 20:54:14 -0400
>
>Sorin,
>
>I liken it to an IP access list where a one in the mask is a don't care
>bit. So, using network number 200000a0 as the base address and applying
>the mask 00000003, we block 200000a1, 200000a2, and 200000a3 (any
>combinations of bits in the lower two bits) The mask says we don't care
>about the last two bits (0,1,2 or 3), e.g., 0000, 0001, 0010, or 0011.
>
>We probably could have used 200000a1, 200000a2, or 200000a3 as the base
>address (as long as the top two bits in the "nibble" are zero). keep in
>mind that 200000a2, for example, is 0010 0000 0000 0000 0000 0000 1010
>0010.
>
>This is probably not the best explanation.
>
>hth,
>
>Les
>
>At 12:21 AM 4/11/2001 +0000, Sorin Suru wrote:
>>Les,
>>
>>Would you be kind enough and explain the logic behind it.
>>Thank you very much.
>>Sorin
>>
>>
>>>From: Les Hardin <hardinl@bah.com>
>>>Reply-To: Les Hardin <hardinl@bah.com>
>>>To: garry baker <fallow46@yahoo.com>, ccielab@groupstudy.com
>>>Subject: Re: blocking ipx networks
>>>Date: Tue, 10 Apr 2001 19:16:22 -0400
>>>
>>> deny 200000a0 00000003 ???
>>>
>>>
>>>At 03:27 PM 4/10/2001 -0700, garry baker wrote:
>>>>Guys,
>>>>
>>>>I am having trouble trying to block three ipx network
>>>>with one statement in an access list. I have been
>>>>playing around with this for a couple of days and have
>>>>not worked it out. If i wanted to block networks:
>>>>
>>>>200000a1
>>>>200000a2
>>>>200000a3
>>>>
>>>>what would be the access list statement. i have looked
>>>>through the archives but still have been unable to do
>>>>this???
>>>>
>>>>Garry
>>>>
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