How to configure Multi homing to Two service provider with Auto Failure.

Unanswered Question
Aug 28th, 2008


I was able to do Multihoming with Two service provider with out Auto Failure.

Can any one please help me on this .

Please share the scenario and commands.



I have this problem too.
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mirzaakberali Thu, 08/28/2008 - 23:09

Further adding more info to my Query :

I was able to perform Multihoming with Public AS . But incase if i need to have a Private AS at my customer premises which need to be configured with BGP multi homing ( two ISP) having Public AS. How do i proceed in this scenario.

Apprecaite your response!


mirzaakberali Thu, 08/28/2008 - 23:49


appreciate your help.

All your scenarios showing when we have Public AS in all three sites---

Customer place/ISP-A/ISP-B .

But I do not want my OWn site to become Trasit AS for both ISP's. I want to use a Private AS on my Site...which will forward all the internet routes to both ISP's and in return i should get routes from only both ISP AS routes , not all routes like other public AS routes of other ISP whicha re conected from these ISP A & B.

My Current scenario :- I have a single Router conected to dual ISP and looking for auto failure for these scenario when one link goes down.


mirzaakberali Tue, 09/09/2008 - 02:04


Can any please respond and help out to on this BGP Query.

Warm Regards!

mirzaakberali Tue, 09/09/2008 - 23:42


Thanks for your PPT! But it could not help my requirement.

My curent requirement:-

Single Router at our premises - connected to Two ISP with two serial ports.

Looking for auto failure with Multi homing in this scenario.

Warm Regards!


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