RE: cannonical to non-cannonical

From: Chris Jackson (cjackson69@xxxxxxxx)
Date: Thu Aug 17 2000 - 14:11:44 GMT-3


   
What is the rule of thumb for doing the conversion on dlsw dmac filters?

I know that Dlsw always uses non-cannonical, While bridged packets across a
serial link always uses cannonical, but where do you apply the bit swapped
address?

Ehternet--------DLSW--------Token Ring

Do I apply the dmac filer swapped on the remote peer statement of the
Ethernet segment?
I believe the proper way of setting an ICANREACH ICANNOTREACH statement on
the Ethernet said would be to apply it bit swapped on the router with
Ethernet.

Any advice on this would be appreciated.

1ST Lab attempt = 6 days and counting

Chris Jackson
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Thomas Trygar
Sent: Thursday, August 17, 2000 11:53 AM
To: John Conzone
Cc: ccielab@groupstudy.com
Subject: Re: cannonical to non-cannonical

I can't remember where I got this, but very quick....

Hold both hands in front of you. Fingers up, thumbs tucked into your palm.
Have your palms facing towards you. Each finger represents a bit. Extend a
finger upward for each '1' and fold it down for each '0'.

You now have represented the byte with your hands.

To convert, rotate your palms away from you and then cross your forearms to
make an 'X'. Read your fingers to reconstruct the HEX representation.
Works
going from canonical to non-canonical and vice versa.

Tom Trygar

John Conzone wrote:

> Andrew, no offense to anyone intended, but if they don't they
> shouldn't be on this board.
> ----- Original Message -----
> From: "Andrew" <arousch@home.com>
> To: "William Dicks" <wdicks@structure-tech.com>; <ccielab@groupstudy.com>
> Sent: Wednesday, August 16, 2000 9:44 PM
> Subject: RE: cannonical to non-cannonical
>
> > You are making the assumption that the audience knows how to convert to
> > HEX/BIN/DEC and back.
> >
> > At 07:49 PM 8/16/00 -0500, William Dicks wrote:
> > >Ok, if you have an Ethernet Mac address that starts 0C-4E.....
> > >that's 0C= 0000 1100
> > >and 4E = 0100 1110
> > >
> > >now flip each BYTE in order so 0000 1100 -> 0011 0000. Now turn that
> into
> > >hex -> 30
> > >now 4E=0100 1110 flip -> 0111 0010 = 72 in hex...so the MAC would look
> like
> > >30-72....on a token ring segment if you looked at it with a sniffer.
> > >
> > >so in summary, write out each BYTE, flip the whole byte, convert to
> hex...
> > >
> > >Bill
> > >
> > >-----Original Message-----
> > >From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > >Aaron DuShey
> > >Sent: Wednesday, August 16, 2000 6:30 PM
> > >To: CCIE (E-mail)
> > >Subject: cannonical to non-cannonical
> > >
> > >
> > >I know this issue was brought up before, but I am still confused on how
> to
> > >do this. Can someone give me a link that may help? Caslow's didn't help
> much
> > >at least for me-
> > >thanks,
> > >
> > >Aaron DuShey
> > >



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