From: Godswill Oletu (oletu@inbox.lv)
Date: Mon Nov 14 2005 - 01:53:51 GMT-3
Steve,
I was just using the ACL commands as an analogy to show how the 'discard mac
address' and 'no bridge 1 acquire' commands work.
bridge 1 address <mac-address> discard
is your best option, except where something in the scenario indicate the use
of the 'no bridge 1 acquire' command.
HTH
Godswill Oletu
----- Original Message -----
From: "steven richards" <ccie_2005@hotmail.com>
To: <oletu@inbox.lv>; <ccielab@groupstudy.com>
Sent: Monday, November 14, 2005 10:26 PM
Subject: Re: Different techniques with discarding Mac addresses with
fallback bridging
>
> Thanks for the help. Also how does your ACL get applied to the
> bridge-group ? And also is using the
> bridge 1 address <MAC> discard not a viable solution ?
>
> Thanks,
>
> SW1(config)#bridge 1 ?
> acquire Dynamically learn new, unconfigured stations
> address Block or forward a particular Ethernet address
>
> >From: Godswill Oletu <oletu@inbox.lv>
> >To: steven richards <ccie_2005@hotmail.com>, ccielab@groupstudy.com
> >Subject: Re: Different techniques with discarding Mac addresses with
> >fallback bridging
> >Date: Sun, 13 Nov 2005 22:02:35 -0500
> >
> >Both commands work differently..... If you know the particular
mac-address
> >to discard, then option 1 is preferred, more so it will discard only the
> >addresses you specify, just like..
> >
> >access-list 1 deny 1.1.1.1
> >access-list 1 permit any
> >
> >The second method is useful when you know the mac-addresses, you want to
> >learn and you do not care about other addresses. Also remember that once
> >you
> >say 'no bridge 1 acquire' the bridge will stop learning mac-addresses,
you
> >have to manually configure each and every mac-address that you want the
> >brigde to know ('bridge 1 address <mac-address> forward <interface-id>),
> >kind of SCARY...:just like...
> >
> >access-list 1 permit 1.1.1.1
> >access-list 1 DENY ANY
> >
> >You can see that, they are actually opposite. Using the second method
> >without your scenario calling specifically for it, might not be a good
> >ldeal
> >and have the potential of poking holes into your bridge configuration.
> >
> >HTH
> >Godswill Oletu
> >
> >----- Original Message -----
> >From: "steven richards" <ccie_2005@hotmail.com>
> >To: <ccielab@groupstudy.com>
> >Sent: Monday, November 14, 2005 8:18 PM
> >Subject: Different techniques with discarding Mac addresses with fallback
> >bridging
> >
> >
> > > Hello,
> > >
> > > Fallback bridging does not appear to be covered very well on the Doc
CD
> >from
> > > what I can see. But searching around I have found a few different ways
> >to
> > > discard MAC addresses. One is by using the
> > >
> > > bridge 1 address <MAC Addy> discard command
> > >
> > > The other I can think of is to maybe use the ..
> > >
> > > bridge 1 address <MAC Addy> forward
> > > no bridge 1 aquire
> > >
> > > I couldnt really find this topic covered very well in the DOC cd.
Anyone
> > > have any thought process on choosing a method ? Or if either method
> >works
> > > properly ?
> > >
> > >
> > > Thanks,
> > >
> > > _________________________________________________________________
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> > >
> > >
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