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HSRP enabling using an active VLAN interface IP Address

Posted on 2013-01-27
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Hi Folks,  Have 2 x 6500 (A) and (B)  (A) is primary for Intervlan Routing and have a Vlan (VLan26) 192.168.6.26 which serves as our backbone gateway and many machines have this IP as there Default Gateway.  

I want to try and do this without the need to change all the Default Gateway's on our servers to point to a new Virtual IP over HSRP.

How can I enable HSRP on 6500 (A) to use the current active IP 192.168.6.26 on Vlan 26 and then I go to 6500 (B) to configure it ther as well after I give int Vlan 26 say 192.168.6.25 and then point it also to Standby ip 192.168.6.26.


Cheers Norm
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Question by:999
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by:
Ken Boone earned 2000 total points
ID: 38825536
Norm,
You will have to take a very brief outage to make this happen.  On int vlan26 on (A) you will need to change its IP address to something different.  This is where the outage occurs.  But then you configure HSRP with 192.168.6.26 as the virtual IP.  Within about 20 seconds it should kick in and everything that had a default gateway of .26 should come right back up.

Then on (b)  just go ahead and configure HSRP using .26 as the virtual.  That will become the standby without an outage occuring.

So if you script this out and copy/paste into the config on (A) you should only be looking at about 20 seconds of an outage for those devices.
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by:999
ID: 38825556
Excellent thanks for t hat.....
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