From: OhioHondo (ohiohondo@columbus.rr.com)
Date: Thu Jan 09 2003 - 19:57:41 GMT-3
The mask is not bit swapped.
If the addresses that you've specified are Ethernet (canonical), you have to
bit swap them prior to establishing the mask. So if canonical ab12.cd34.ef56
to ab12.cd34.f082 is 300 address that can be covered by a mask that is more
or less consecutive
How many address would be between the bit swapped addresses 5d84.3bc2.7fa6
and 5d84.3bc2.f014?? (The difference between these 2 addresses is 28, 782.
If you want a consecutive mask it would be quite different.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of love
cisco
Sent: Thursday, January 09, 2003 5:13 PM
To: swm@emanon.com; ccielab@groupstudy.com
Subject: RE: Dlsw+ access-list filter for MAC address
Thanks, Scott.
How about a range of MAC address. Do I have to do the bit swap on MAC
address MASK?
For example,
One Ethernet canonical MAC address range is from ab12.cd34.ef56 to
ab12.cd34.f082. This MAC address range has 300 MAC addresses.
So what is this DLSW filtering could be?
dlsw icanreach mac-address 5d84.3bc2.7fa6 mask ffff.ffff.f12c
or MAC access-list
access-list 700 permit 5d84.3bc2.7fa6 0000.0000.012c
Am I right?
Thanks
>From: "Scott Morris" <swm@emanon.com>
>Reply-To: "Scott Morris" <swm@emanon.com>
>To: "'love cisco'" <love_cisco@hotmail.com>, <ccielab@groupstudy.com>
>Subject: RE: Dlsw+ access-list filter for MAC address
>Date: Thu, 9 Jan 2003 06:57:23 -0500
>
>This has been answered a lot in the past few weeks! :)
>
>YES, you still have to worry about it! Even though both of your
>ethernet's don't care, DLSW as a technology talks about things just like
>Token Ring does natively. So everything will get bit-swapped twice from
>ethernet into DLSW and then back out again. All filtering needs to be
>done in a bit-swapped manner.
>
>Scott
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>love cisco
>Sent: Thursday, January 09, 2003 4:22 AM
>To: ccielab@groupstudy.com
>Subject: Dlsw+ access-list filter for MAC address
>
>
>Hi, friends
>
>Just want to confirm that since Token Ring is gone in the new lab. So we
>
>don't have to worry about convert canonical to no nocanonical for MAC
>access-list. Is that right?
>
>thanks!
>
>_________________________________________________________________
>SkA*;z5DEsSQ=xPP=;Aw#,GkJ9SC MSN Messenger: http://messenger.msn.com/cn
>.
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