02-16-2008 12:19 AM - edited 03-05-2019 09:11 PM
Hi all,
I will configurate two catalyst3750 using HSRP Authentication next week.
(Catalyst3750:IOS 12.2(25)SEE2)
<catalyst3750#1>
interface GigabitEthernet3/0/X
no switchport
ip address XX.XX.XX.1 255.255.255.0
standby XX ip XX.XX.XX.254
standby XX priority XX
standby XX authentication abc <----here
<catalyst3750#2>
interface GigabitEthernet3/0/X
no switchport
ip address XX.XX.XX.2 255.255.255.0
standby XX ip XX.XX.XX.254
standby XX priority XX
standby XX authentication abc <----here
I have two questions:
Firsty,If I configurate only one catalyst3750#2,the catalyst#2 can't
be authenticated for the other catalyst#1.
Can the catalyst3750#2 chaneg active status?
(of course I will configurate the second catalyst3750#1 10 min later. )
I think non-authentication has nothing to do with it.
I guess HSRP will always use authentication.
(If not specified, maybe,,,the default value is "cisco.")
Secondly,Does HSRP(Catalyst) always use authentication(default password is cisco)?
Regards,
Tadashi
02-16-2008 12:45 AM
If you configure authentication on the primary router and not on the standby router, the standby status will reflect as unknown on both the routers.
As per my wexperience the standby will not change the status as active
Once you have configured the authentication on both the routers, the standby status will reflect both active/standby router status
By default HSRP does not use any authentication
HTH
Narayan
02-16-2008 01:25 AM
Thank for your replay, Narayan
But I will configurate new HSRP my situation.
(It is not an addition of HSRP Authentication. )
How do you think my situation?
(I will configurate on init status router. )
Tadashi
02-16-2008 03:08 AM
Tadashi,
I tested it out and the situation is same even when you configuring HSRP for the first time.
So don worry that both the routers would be active at the same time :-)
HTH, rate if it does
Narayan
02-16-2008 04:25 AM
Narayan,
Thank you for your helpfulness.
I would like to ask and confirm you again.Sorry.
I wrote my question again.
If I configurate only one catalyst3750#2,
the catalyst#2 can'tbe authenticated for the other catalyst#1(I don't still configurate
the second catalyst3750#1.).
Then, Can the catalyst3750#2 chaneg active status?
(I don't still configurate HSRP for the second catalyst)
I hope the communication starts only one switch. (Because, cannot configurate
the second catalyst3750#1 soon.)
Tadashi
02-16-2008 05:25 AM
There should not be any problem.
whenever you configure, there will always be a state where one router is configured and other is not
Narayan
02-16-2008 03:52 PM
Hello Narayan,
Can the catalyst3750#2 change active status?
(I still haven't configurated HSRP for the catalyst3750#1ã)
Tadashi
02-17-2008 01:46 AM
Postscript:
I will configurate new HSRP.
(Not only HSRP Authentication)
OK?
Tadashi
02-17-2008 11:15 AM
Yup go ahead
Narayan
02-17-2008 03:03 PM
Hi Narayan,
Thanks I understand.
Tadashi
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