Re: HSRP..Standby routers should not know Standby address !

Or is it that.. As long as R1 is alive and kicking... R2 doesnt need to know
abt the timers and all.. and once R1 goes down.. R2 waits for so many missed
Hellos and takes over.! at the standby address?

Sent from Cochin, KL, India

On Tue, Aug 11, 2009 at 1:16 AM, Divin Mathew John <divinjohn_at_gmail.com>wrote:

> How would that help? U mean to say... u have R1(10.1.1.1)----R2(10.1.1.2)
> and Standby IP 10.1.1.100 ..now if we make R1 the active router for the
> HSRP Group. and say Authentication is ON.. wont R2 know wht standby
> Address is?? will be pre-shared key help in mitigating a security risk of a
> R3 (a thrid alien router) coming into the Ethernet segment and preempting
> the current active router R1. ?
>
>
> On Tue, Aug 11, 2009 at 12:16 AM, Mohamed El Henawy <m.henawy_at_link.net>wrote:
>
>> Thanks a lot..clear now :)
>>
>> ----- Original Message -----
>> From: kaushalccie patel
>> To: Mohamed El Henawy
>> Cc: Cisco certification
>> Sent: Monday, August 10, 2009 9:19 PM
>> Subject: Re: HSRP..Standby routers should not know Standby address !
>>
>>
>> This may help....
>>
>>
>> Authentication
>> The HSRP authentication feature consists of a shared clear-text key
>> contained within the HSRP packets. This feature prevents the lower
>> priority
>> router from learning the standby IP address and standby timer values from
>> the
>> higher priority router.
>>
>> To configure the HSRP authentication string, use the standby
>> authentication
>> string command.
>>
>>
>>
>>
>> http://www.cisco.com/en/US/tech/tk648/tk362/technologies_tech_note09186a008
>> 0094a91.shtml<http://www.cisco.com/en/US/tech/tk648/tk362/technologies_tech_note09186a008%0A0094a91.shtml>
>>
>>
>> -Kaushal
>>
>>
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Received on Tue Aug 11 2009 - 01:20:44 ART