The Cat 2912 XL is a Layer 2 device and is not aware of the IP addresses
that are assigned to the nodes at the other end of any of the wires. The
switch makes all of its packet moving decisions based entirely on the MAC
addresses.
as Jason wrote you will require a Layer 3 aware device to map the IP to MAC
address and then take that list to the switch
----- Original Message -----
From: Rafael A. Reta Rodriguez <rafareta@icave.com.mx>
To: Young, Jason <Jason.Young@anheuser-busch.com>; Cisco List
<cisco-nsp@puck.nether.net>
Sent: Wednesday, August 15, 2001 2:32 PM
Subject: Re: [nsp] ip-switch port map
> I hope there is a one steep way to do it than sh arp and sh mac,
shomething like a
> show ip-address-port. The switch must have this info :-)
>
> "Young, Jason" wrote:
>
> > Locate the MAC address for that IP address, by looking at the
> > workstation/server/whatever, or looking at a handy router or other L3
device
> > that would have it in its arp table. Then, use "show mac-address-table"
on the
> > switch port to find what MAC addresses are at which port.
> >
> > Jason Young
> > CNS - Network Design, Anheuser-Busch
> > (314)577-4597
> >
> > > -----Original Message-----
> > > From: Rafael A. Reta Rodriguez [mailto:rafareta@icave.com.mx]
> > > Sent: Wednesday, August 15, 2001 1:16 PM
> > > To: Cisco List
> > > Subject: [nsp] ip-switch port map
> > >
> > >
> > > How can I know which ip are connected to a certain switch port?
> > >
> > > I have a Catalis 2912 XL.
> > >
> > > TIA
> > >
> > > RafaReta
> > >
>
>
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:12:49 EDT