Only the last 23 or least significant bits are transformed to the mac.

Corect answer is  01-00-5e-40-ff-2d

                        Lets look at how I got 40 out of the 192 part of the
first listing.
                192 in binary is 11000000
                             ^
                                This bit does not migrate to the MAC it is always  
0(that is not used)
This is why it is possible to have 32
different IP Multicast address with the same MAC.( Don't worry though
Cisco says there won't be any harm in this).

I hope this helps

Matt C. Lange
CCNP CCDP MCSE CS



I didn't fair very well on BCMSN. Two questions that I though I got right
but were marked wrong were on Multicast IP address:

224.192.255.45 = My answer was 01-00-5E-C0-FF-2D         and
224.163.163.45 = My answer was 01-00-5E-A3-A3-2D

Both were marked wrong on the test. What did I do wrong?
Regards,
Scott

David Ristau wrote:

> Zoiks ! Wiped my butt, 24/52  Cisco Network Acad never prepared me for
> that one..
> thanks
>
> Dave
>
> henry wrote:
> >
> > Each exam you can use six times.
> > many qiz is real qiz!
> > I use is prepare CVOICE, 60% qizs is same.
> >
> > Henry Zheng
> > <[EMAIL PROTECTED]> wrote in message
> > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > > Requires CCO id.
> > > http://www.cisco.com/cgi-bin/front.x/wwtraining/colt/ColtLogin.pl
> > >
> > > Anyone tried that?
> > > Ryan
> > >
> > >
> > > ___________________________________
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