Single isp dual failover links

Asked Sep 14 '20 at 23:32

Active Sep 14 '20 at 23:32

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I'm having a problem trying to configure my cisco 3945 router to use a dual hand-off wan links.
Lets say the ISP has provided the below ip addresses where they are doing hsrp at their end

ISP EDGE 1 IP : 192.168.0.1  
ISP EDGE 2 IP : 192.168.0.2  
ISP VIRTUAL IP : 192.168.0.3  
AVAILABLE IPs : 192.168.0.4 - 192.168.0.6

I have one of the fiber link connected to my cisco 3945 gig 0/1 port and configured it to use 192.168.0.4/29. And default route to 192.168.0.3. This works fine.
I have the other fiber link connected to gig 0/2 port. Not sure how to use this as a fail over interface when fiber link on gig 0/1 goes down.

Any help would be appreciated.
Thanks.

asked Sep 14 '20 at 23:32

Bhargav

1

You need to set up something like IRB. See [this answer](https://networkengineering.stackexchange.com/a/61111/8499). – Ron Maupin Sep 15 '20 at 00:31
That worked like a charm!! Thank you @RonMaupin. – Bhargav Sep 15 '20 at 20:02

Single isp dual failover links

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