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last person joined: 8 months ago 

This is a legacy community with limited Juniper monitoring.

  • 1.  monitor track-ip ip

    Posted 09-17-2015 11:53

     

    set interface bgroup0 manage mtrace

    set interface ethernet0/0 monitor track-ip ip 4.2.2.2

    unset interface ethernet0/0 monitor track-ip dynamic

     

    set route 0.0.0.0/0 interface ethernet0/0 gateway 65.x.x.97 preference 20

    set route 0.0.0.0/0 interface ethernet0/4 gateway 70.x.x.1 preference 20 metric 10

     

     

    My understanding from those command above:

     

    If Ethernet 0/0 is down, the default route uses ether0/4 to transfer date. Is it correct?

     

    I am not sure the meaning of the highlight command, could you help to explain.

     

    Please help

     

    Thanks

     

    Loc N



  • 2.  RE: monitor track-ip ip
    Best Answer

    Posted 09-17-2015 12:04

    With those commands, if traffic is unable to reach 4.2.2.2 via eth0/0, then it will mark that interface as down and the route will fail over.



  • 3.  RE: monitor track-ip ip

    Posted 09-17-2015 12:14

    Thanks,

     

    I am trying to move ethernet0/0 to ethernet0/4,

     

    Should i worry about the command :unset interface ethernet0/0 monitor track-ip dynamic ?

     

    Loc



  • 4.  RE: monitor track-ip ip

    Posted 09-17-2015 12:17

    "unset interface ethernet0/0 monitor track-ip dynamic" disables tracking of the default gateway address.  By default, interface track-ip will monitor the default gateway IP address.



  • 5.  RE: monitor track-ip ip

    Posted 09-17-2015 12:44

    How do i know which one currently is the default gateway IP address?

     

    Does it from the command : set route 0.0.0.0/0 interface ethernet0/0 gateway 65.x.x.97 preference 20 ?