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  1. Does the Dual home method 2 and method 3 varies in costs to the enterprise? or same?


  2. Hello Srinivasan

    The Dual homed method 2 involves two separate ISP routers from the SAME ISP. This would most likely increase the cost of the solution compared to method 1 because of the fact that you require your ISP to provide you with two pieces of equipment on their end.

    Method 3 would most likely be even more expensive, because you are purchasing connectivity to two DIFFERENT ISPs, so you can’t take advantage of any discounts the single ISP may give you for multiple links.

    What I’m describing is the most probable case concerning cost. Ultimately it depen

    ... Continue reading in our forum

  3. Hey,
    is it possible to run also VRRP/HSRP with 2 BGP customer Edge Routers to 1 ISP-Router and be like Dual Homed then? Is there a documentation for that?
    I mean 1 public IP shared with Failover by 2 Routers.
    In Detail i would give a loopback the public IP and do OSPF between ISP and Customer(HSRP)

    Best regards

  4. Hello Alexander

    In order to run a redundancy gateway protocol on two edge routers with a single ISP router, you’d need some infrastructure between the edge routers and the ISP routers like a switch. It is possible, but this would introduce a new single point of failure and this is not desired especially on the edge of the network.


    That would also mean that if your edge routers are performing NAT, you would require three public IP addresses, one for each ... Continue reading in our forum

  5. Wow, a great and detailed response. I see my Problem in understanding now.
    So any of these are not recommended :smiley:

    So better redundancy with 2 own Routers and 1 Provider Router would be via having a link for each own router to the Provider Router and using AS Path for advertising the backup path via the standby router?

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