Routing

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  • 1.  how to? routing qualified-next hop unreachable

    Posted 11-06-2012 08:08
      |   view attached

    Hello,

    There is my problem:

    I have a cluster FW SRX 240, VC switch EX4200, and 3 differents modems from 2 differents providers.

    One modem with redundancy, 2 without redundancy.

    I have filters on the FW to route specific IP through specific router.

     

    example:

    root@MY-CLUSTER# show routing-instances MyRoutingInstance 
    instance-type forwarding;
    routing-options {
       static {
          route 0.0.0.0/0 {
             next-hop xxx.xxx.xxx.xxx;
             qualified-next-hop yyy.yyy.yyy.yyy {
                preference 1;
             }
             qualified-next-hop zzz.zzz.zzz.zzz {
                preference 5;
             }
          preference 10;
          }
       }
    }

     

    Because the router with the yyy.yyy.yyy.yyy and zzz.zzz.zzz.zzz address aren't redundant, there is a switch between the FW and the routers, like on the attachement.

    In red, VLAN for yyy.yyy.yyy.yyy router and in black VLAN for zzz.zzz.zzz.zzz router.

     

    So when the router yyy.yyy.yyy.yyy is unavailaible (because link down or something else), the route is still availlaible.

    I know that's because the link state on the FW isn't down, but what can I do for use the second prefered route when the first router isn't available?

     

    On the yyy and zzz router, I can only manage their IP address, they are small netgear router.

     

    Sorry for my english, I hope you understand the problem.

    Thanks.



  • 2.  RE: how to? routing qualified-next hop unreachable
    Best Answer

    Posted 11-07-2012 04:53

    Hi,

     

    Ip-monitoring feature should help you . KB22052 provides a detailed explanation of this . 

    BFD is another option , but I am not sure on the Netgear support for that .



  • 3.  RE: how to? routing qualified-next hop unreachable

    Posted 11-07-2012 06:06

    Thanks a lot, I found this too, in another post few moments ago.

    I have tested and it's work fine.