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Forum Replies

  1. The configuration is 99% the same. Just make sure you have two equal default routes, in this example the second static route has an AD of 2. Remove that so they both have an AD of 1.

    Secondly create an IP SLA instance for each default route so that you can ping IP addresses of each ISP.

  2. Hi Ian,

    Static routes will send ALL traffic for a certain prefix in a certain direction. It doesn’t care what kind of traffic it is…PBR (Policy Based Routing) lets you change the next hop IP address for specific traffic, for example something that matches an access-list.

    The “backup” time depends on the timers that you configured for IP SLA.

    For your internal networks, OSPF is a good solution because it will automatically deal with failed links and such. IP SLA + Static routes however can be useful for the edge of your network. Imagine you have two ISPs and you

    ... Continue reading in our forum

  3. Hi Rene,
    Is there a way to delay fail-back for more than 30 minutes or some timer to Primary ISP to avoid flapping connections? Or anyway to make it NO FAIL BACK like config?

  4. Hi Rene/Moderators,

    When 8.8.8.8 is not reachable from dialer0, default route via cellular takes over.
    The traffic is not failing back from cellular to dialer, would it be because timeout and threshold have not been defined?

    track 234 ip sla 1 reachability
    
    ip sla 1
     icmp-echo 8.8.8.8 source-interface Dialer0
     frequency 5
    
    ip sla schedule 1 life forever start-time now
    
    ip route 0.0.0.0 0.0.0.0 Dialer0 track 234
    ip route 0.0.0.0 0.0.0.0 Cellular0 254

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