From: Fowlie, Colin (Colin.Fowlie@aliant.ca)
Date: Thu Mar 04 2004 - 14:08:37 GMT-3
Yup. That would be the port from where the switch sees that MAC address. It doesn't indicate that ARP is being permitted.
HTH
Colin
-----Original Message-----
From: alsontra@hotmail.com [mailto:alsontra@hotmail.com]
Sent: Thursday, March 04, 2004 3:02 PM
To: Fowlie, Colin; ccielab@groupstudy.com
Subject: Re: 3550 mac-address-table - VACL
Thanks Colin,
So "Po1" simply means forwarding entry.
Alsontra
----- Original Message -----
From: "Fowlie, Colin" <Colin.Fowlie@aliant.ca>
To: <alsontra@hotmail.com>; <ccielab@groupstudy.com>
Sent: Thursday, March 04, 2004 8:51 AM
Subject: RE: 3550 mac-address-table - VACL
> What you're looking at is the mac-address-table. This is the forwarding
table that is built by the switch. It is not an arp entry. The switch is
simply creating the mac table entry based on the source MAC address of a
frame received from the host on a particular port. This perfectly fine as
long as the arp entries don't show up on R4 and R6.
>
> Colin
>
> -----Original Message-----
> From: alsontra@hotmail.com [mailto:alsontra@hotmail.com]
> Sent: Thursday, March 04, 2004 2:34 PM
> To: ccielab@groupstudy.com
> Subject: 3550 mac-address-table - VACL
>
> Group,
> I've applied a vlan access-map that essentially denies arp
requests
> to any host on vlan 162. The access-map creates the desired effect with
the
> exception of the switch. I've rebooted and clear all dynamic entries a
number
> of times. Is this normal behavior?
>
> The 3550 gets an arp request, adds it to its local mac-addres-table, but
will
> not forward if a vlan access-map forbids the action?
>
> Topology:
>
> R6---SW2----R4
>
> VLAN map denies arp on vlan 162, which connects them. Although the
devices
> cannot arp through the 3550, the retains arp entries for both devices. Its
not
> a big deal because the vlan access-map is doing its job, it just a little
> confusing to still see arp entries when you think arp is being denied.
>
>
> SW1#
> 162 000d.bc24.c80e DYNAMIC Po1
> 162 0050.d15f.7420 DYNAMIC Po1
> 162 00e0.1ece.4a68 DYNAMIC Fa0/24
>
> Thanks,
> Alsontra
>
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