Here is the official answer:
The standby router automatically assumes the role when the active router
fails or is removed from service. This new active router remains the
forwarding router even when the former active router with the higher
priority regains the service in the network.
The former ac
yes
-Original Message-
From: Doug Laing [mailto:[EMAIL PROTECTED]]
Sent: 21 November 2000 12:36
To: [EMAIL PROTECTED]
Subject: HSRP question
When using HSRP, what happens when the primary gateway goes down, then
back up? Does it become the primary again?
Thanks.
_
ation under "standby priority, standby preempt".
Kevin Wigle
- Original Message -
From: "McCallum, Robert" <[EMAIL PROTECTED]>
To: "'Doug Laing'" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Tuesday, November 21, 2000 7:58 AM
Subjec
This depends on your configuration.
If you configure "Standby preempt" on the interface, the interface
with the highest priority will allways become active.
If you don't configure this feature, the secondary interface will stay
active.
Taco Hettema
CCNP CCDP
-Original Message-
From:
If you have the preempt command on the primary device
-Original Message-
From: McCallum, Robert [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, November 21, 2000 6:58 AM
To: 'Doug Laing'; [EMAIL PROTECTED]
Subject: RE: HSRP question
yes
-Original Message-
From: Doug Lai
You need a unique address on each router, and another unique address
shared between routers for the standby ip. In total 3 addresses.
It would be a good idea to look at the below documentation before
implementing this configuration. Tracking interfaces or doing
load sharing may be beneficial de
Mary,
Here is a correct HSRP config
Router A
interface FastEthernet2/0
ip address 10.10.52.66 255.255.255.240
no ip redirects
no ip directed-broadcast
standby 17 priority 150
standby 17 preempt
standby 17 ip 10.10.52.65
Router B
interface FastEthernet2/0
ip address 10.10.52.67 255.255
On Fri, 26 May 2000, Mary Smith wrote:
> I have 2 routers . Router B is set up for Hot Standby
> Router A is 2524, Router B is 2620:
>
> Router A configuration:
> .
> .
> int e0
> ip address 209.49.216.241 255.255.255.248
> standby 1 ip 209.49.216.245
> standby 1 preempt
> standby 1 priority 110
Why would you have both Routers as "Preempt"? I thought that only the
primary should have this command so that it would become the primary after
coming back on line.
Chris
""Hughes, Nicholas"" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Mary,
>
> Here is a
From Cisco IOS Software command summary:
The router is configured to preempt, which means that when the local
router has a Hot Standby priority higher than the current active router,
the local router should attempt to assume control as the active router.
If preempt is not configured, the local r
It will not work :-)
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Mark
Sent: Tuesday, June 06, 2000 12:19 PM
To: [EMAIL PROTECTED]
Subject: HSRP Question
When configuring HSRP, Cisco gives the example of:
interface ethernet 0
ip address 1.0.0.1 255.
]]
Sent: Tuesday, June 06, 2000 12:44 PM
To: Mark; [EMAIL PROTECTED]
Subject: RE: HSRP Question
It will not work :-)
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Mark
Sent: Tuesday, June 06, 2000 12:19 PM
To: [EMAIL PROTECTED]
Subject: HSRP Question
uesday, June 06, 2000 1:15 PM
To: 'Tom Thomas'; Mark; [EMAIL PROTECTED]
Subject: RE: HSRP Question
Mark,
This WILL work, but only if you have ONE interface configured for HSRP on
each router. If you are going to have Multiple interfaces configured for
HSRP on one router then you have to have
I respectfully disagree... I believe the default HSRP group of 0 (zero)
will be invoked. It would only not work if the other HSRP participants
were configured to use group 1. This is a common config mistake, where
specific groups are created (say, to permit identification of unique
HSRP partici
work Engineer
Phone:913.859.1986
PCS:913.485.9734
Fax: 913.859.1234
-Original Message-
From: Tom Thomas [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 06, 2000 11:44 AM
To: Mark; [EMAIL PROTECTED]
Subject: RE: HSRP Question
It will not work :-)
-Original Message-
Fr
SO are we saying that if we have two routers setup the same way defaulting
to standby "0", Then when one drops the other will take over? I guess
another way of saying it is, the two routers are defaulting to "0" and they
will automatically become the backup for each otherI think this is
inco
is unknown expired
Standby virtual mac address is .0c07.ac00
Now can I finish my lunch?
-Original Message-
From: McMasters, Eric [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 06, 2000 1:51 PM
To: 'Tom Thomas'; Mark; [EMAIL PROTECTED]
Subject: RE: HSRP Question
My inte
You need the group number.
mms> -Original Message-
mms> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
mms> Mark
mms> Sent: Tuesday, June 06, 2000 9:19 AM
mms> To: [EMAIL PROTECTED]
mms> Subject: HSRP Question
mms>
mms>
mms> When configuring HSRP, Cisco gives the example
SO are we saying that if we have two routers setup the same way defaulting
to standby "0", Then when one drops the other will take over? I guess
another way of saying it is, the two routers are defaulting to "0" and they
will automatically become the backup for each otherI think this is
inco
It is entirely up to you as to what group number you choose. Logic tends to
say you should use the same numbers so that fault finding and general logic
is easy to follow. But at the end of the day you could have group number 1
within vlan 12 if you wished.
Hope this helps.
-Original Messag
Dean,
Whether or not you use the VLAN id as the group ID is up to you. On my
network I have one VLAN running over one HSRP group and three others
running over another just to balance out the load on 2 T1s.
-Original Message-
From: [EMAIL PROTECTED]
Sent: Tuesday, October 10
PM
To: MADMAN; CCIE FUN
Cc: [EMAIL PROTECTED]
Subject: Re: HSRP question
I have run hsrp on primary and secondary address's and it
works..
However , I support Dave's thoughts that I dont like to do
it for prduction
networks or for long periods of time...
Larry Letterman
rman" ; "Cisco groupstudy"
Sent: Wednesday, February 12, 2003 7:01 PM
Subject: RE: HSRP question
> Larry,
> Care to elaborate a little on the downside to doing this? We're doing
> it in our network but I'd love to present some reasons why we shouldn't and
Hi Glenn-
We have our core configured exactly as you want to do. The following link
details how to do it:
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/sft_6_1/configgd
/redund.htm
Basically, the redundant supervisors fail over automatically. You need to
enable a "four-way" HSRP
Thanks Scott-
This is just what I was looking for.
-Glenn
""Scott Froese"" <[EMAIL PROTECTED]> wrote in message
96csho$un0$[EMAIL PROTECTED]">news:96csho$un0$[EMAIL PROTECTED]...
> Hi Glenn-
>
> We have our core configured exactly as you want to do. The following link
> details how to do it:
Glen,
What about this?
Set up 2 HSRP groups.
Group 1 would consist of MSM in slot 15 on CAT 1, and MSM in slot 15 on CAT
2.
Group 2 would consist of MSM in slot 16 on CAT 1, and MSM in slot 16 on CAT
2.
You said you have 2 VLANs.
What about setting 2 default gateways for VLAN 1 going to the virt
Nope. Each router need one ip and the virtual ip will be all computer's
gateway. That means you need to use 3 ip addresses. You only have 11 to
use.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
ipguru
Sent: Thursday, January 11, 2001 12:09 PM
To: [
no. You need 1 ip per router; besides the ip for the virtual. You cannot
use an ip that belongs to either physical interface nor ip's of any of the
devices that make up the network. The ip you chose for the virtual hsrp
will have its own virtual hardware address given by the router- this wou
You CAN'T use one of your physical router IP addresses for the virtual.
There will be problems with the MAC addresses learned and cached by your
clients. The MAC address for the virtual router is virtual, the MAC address
for the router is physical. The correct answer would be to 1)re-address
you
Thanks! That is the answer i was looking for!
Evan Francen wrote:
> You CAN'T use one of your physical router IP addresses for the virtual.
> There will be problems with the MAC addresses learned and cached by your
> clients. The MAC address for the virtual router is virtual, the MAC address
>
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