Re: looking addr iinside a switch

HSRP uses a custom range of MAC addresses. 0000.0c07.acXX where XX is the
group ID in hex.
That way you can identify the HSRP IP address, which is 10.10.94.4 in your
example.
(You would get in trouble if the router admins configured use-bia, that way
HSRP uses the regular interface MAC address)

--
Regards,
Rick Mur
CCIE2 #21946 (R&S / Service Provider)
Sr. Support Engineer  IPexpert, Inc.
URL: http://www.IPexpert.com
On Mon, Oct 26, 2009 at 9:21 AM, <den_son88_at_yahoo.com.sg> wrote:
> Hi All,
>
> In my border switch connection with other party, we implement HSRP at which
> the
> port of the switches connected to 2 routers to perform HSRP fashion. Could
> any
> body share what command I should put in to figure out IP assigned for the
> HSRP
> so I expect to see some output as below. I try the command with all its
> argument but I canb t (might be my switch doesnb t support to result below
> output[?])
> Internet  10.10.94.4            68   0000.0c07.ac00  ARPA
> FastEthernet0/0.158
> Internet  10.10.94.5           156   001a.3028.3c80  ARPA
> FastEthernet0/0.158
> Internet  10.10.94.6            10   001a.3028.a1c0  ARPA
> FastEthernet0/0.158
>
> Many thanks
> dens
>
>
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