From: fningham@xxxxxxx
Date: Thu Jun 27 2002 - 21:50:24 GMT-3
Emmanuel: What you have shouldn't do anything. There
are some fundamental
errors if I understand your description correctly:
First, if you have r1 and r2 as dlsw peers, i.e., no
border peer, then on r1
you want the filter applied to the dlsw prom-peer
defaults command not the dlsw
peer-on-demand-defaults. You would only use the
prom-peer command when you have
a border and r1 and r2 are not configured as peers.
For your configuration to
work as shown you would have a remote-peer statement on
r2 pointing to r1.
Second, you have converted a non-canonical address
to a canonical address.
The token-ring address is already in non-canonical
format and should not be
changed. (As an aside, the MAC address you are using
belongs to one of the PC's
in the NMC course).
Cheers, Fred
>
> From: "Emmanuel Oppong" <e-oppong@attbi.com>
> Date: 2002/06/27 Thu PM 05:01:01 EDT
> To: <ccielab@groupstudy.com>
> Subject: Bitswapping and Mac Filtering
>
> Guys/gals
>
> I need your help on this one:
>
> r1 and r2 are configured as dlsw peers. r1 has a
host on e0 network. r2
> has host-1 and host-2
> on its to0 network. I want r1's host to communicate
with only host-1 on r2.
> MAC addresses for
> the hosts area :
>
> r1 host = 0000-8616-3F04
> r2 host-1 = 0000-F669-5EE7
> r2 host-2 = 0000-F669-5F25
>
> My relevant config for r1 are:
>
> r1:
> dlsw local-peer peer-id 172.16.101.1 promiscuous
> dlsw peer-on-demand-defaults dmac-output-list 700
> dlsw bridge-group 1
> !
> access-list 700 permit 0000.6F96.7AE7 0000.0000.0000
> !
> int e0
> bridge-group 1
> !
> bridge 1 protocol ieee
> !
>
> My questions are:
> I have bitswapped the mac address of host-1 in the
access-list. Is that the
> right thing to do,
> convert r2 host-1 from non-canonical to canonical?
Even if it is right, how
> does r1 associate
> these 2 mac addresses? I am thinking that r1
receives a frame from r2 with
> host-1 source mac address
> in the noncanonical form, right? But how does r1
know that the canonical
> form in the access-list
> matches the host-1 source mac address coming from r2?
Can someone explain
> this?
>
> What is the right way to configure thsi scenario?
>
> Thanks.
>
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