From: Vega, Juan R, SOBUS (juanvega@xxxxxxxxxxxxxxxxx)
Date: Fri Nov 23 2001 - 14:02:13 GMT-3
Hello all,
I would like to introduce myself before I give my opinion. I am new to this
group but have been studying for the LAB for a couple months now. I failed
my first and only attempt on the 2-day back int September.
I agree with the answer below. The key is he assigned subint fa0.3 and
fa0.4 to the same bridge group, without assigning an IP address. This will
cause vlans 3 & 4 to bridge. Any IP traffic not on the same subnet as the
BVI interface will be routed.
Juan Vega [-JV-]
One proposition:
Assume that stations on vlan 3 & 4 have their ip @ in network 1
interface fa0.2
encap isl 2
ip ad <network 2>
interface fa0.3
encap isl 3
bridge-group 1
interface fa0.4
encap isl 4
bridge-group 1
interface bvi 1
ip ad <network 1>
bridge 1 route ip
bridge 1 protocol ieee
FRI
> -----Message d'origine-----
> De: Jonathan Chin Kah Fi [SMTP:kachin@cisco.com]
> Date: vendredi 23 novembre 2001 17:10
> @: DAN DORTON
> Cc: ccielab@groupstudy.com
> Objet: Re: Bridging
>
> I have a question here on bridging for the gurus out there...
>
> Suppose I have a router on a stick scenario whereby it is connected to a
> cat5k's trunk carrying
> vlan 2,3 and 4. So, I will have to create three sub-interfaces on the
> router's fast ethernet interface
> to receive each of the ISL colors. How would you configure IRB if suppose
> you want to bridge
> between vlan 3 and 4 and then route between vlan 2 and the bridged
> vlans???
>
> Any suggestions? One BVI or two?
>
>
>
> DAN DORTON wrote:
>
> > Do any of you bridging guru's ou there have a list of the finer points
> of bridging that they used for CCIE lab study?
> >
> > I am not looking for answers, just topics & issues to focus on.
> >
> > I just started working on bridging & I have built several scenarios so
> far of the basic configurations & such. ( SRB, RSRB, SRTLB, CRB, IRB.)
> >
> > I know there are filtering techniques & timers too adjust also.
> >
> > I am getting closer to running out of time everyday & thought I would
> try to save a little here.
> >
> > Thanks in advance ,
> >
> > Dan
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