07-29-2005 06:31 AM - edited 03-02-2019 11:33 PM
Can anyone show me a config about having 2 routers , 1 being redundant in case the other goes down !!
07-29-2005 07:24 AM
Carl,
Here you go.
regards,
-amit singh
07-29-2005 08:06 AM
anything a little easier, I was hoping for an eay config to copy from ?
07-29-2005 08:12 AM
Hi Carl,
Here is the running config from my 2 routers.
####### Router 1 #######
interface FastEthernet0/0
ip address 151.4.0.21 255.255.255.0
ip accounting output-packets
load-interval 30
duplex auto
speed auto
standby 1 ip 151.4.0.20
standby 1 priority 120
standby 1 preempt
######## Router 2########
interface FastEthernet0/0
ip address 151.4.0.22 255.255.255.0
ip accounting output-packets
load-interval 30
duplex auto
speed auto
standby 1 ip 151.4.0.20
standby 1 priority 110
standby 1 preempt
end
HTH,
-amit singh
08-02-2005 12:41 AM
Can you please explain this config and what both routers are doing ?
thanks
Carl
08-02-2005 02:06 AM
Carl,
These are my 2 routers at central site, configgured for HSRP i.e redundency. 151.4.0.20 is the Standby/virtual gateway IP for the host configured on both the routers.
Standby 1 ip x.x.x.x, command enables the HSRP. Stanby prority sets the prority to configure the router as the active one. By default, when both the routers boots up the one which come early becomes the Active router and other one goes into standby state. If both the routers boots up at the ame time, the one with the highest IP address becomes the Active one. If you want one of your specfic router to beocme the active always you confiure the priority.
Now if your active router goes dwon and the other router takes the active role and starts forwarding the packet. If your first router which went down come s back, then it will go into standby mode, thoguh you have configured the high prority on that router. If you want the router to force the election again when it come sback we use the command " standby preemt " that's given on the interfaces.
HTH,
-amit singh
08-02-2005 07:50 AM
So is 152.4.0.20 a seperate router altogether then, So how many routers have you actually got here ? is there 2 or 3 routers ?? are you saying you have 1 router and 2 backup routers !!
Or do you have 2 routers and configure standby on both of them and which one comes on first etc takes the role,
Please let me know asap as I would like to set this up !!!!
thanks a million
08-03-2005 12:22 AM
Can you please explain to me how you have achieved this, is there just 2 routers here ?
thanks
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