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how to advertise only one ip into OSPF domain from a lo0 interface with multiple IPs configured ?

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  • 1.  how to advertise only one ip into OSPF domain from a lo0 interface with multiple IPs configured ?

    Posted 03-10-2020 15:11

    I have a router with two uplinks which join two different routing protocols, one for isis and the other for OSPF. I have two IPs configured on lo0. I like to advertise one IP into ISIS, and the other one IP advertised into OSPS.

    I applied export policy to ISIS to filter one IP and it works.

    But not work for OSPF. Based on my understanding, policy can't filter LSA flooding in OSPF.

    Any approach I can use to achieve this ?

     

    thanks !!



  • 2.  RE: how to advertise only one ip into OSPF domain from a lo0 interface with multiple IPs configured ?
    Best Answer

    Posted 03-10-2020 15:42

    Hello,

     

    You can reference the ip address instead of the interface under protocols ospf.

     

    #set protocols osfp area 0 interface 10.10.10.10

     

    If this solves your problem, please mark this post as "Accepted Solution".



  • 3.  RE: how to advertise only one ip into OSPF domain from a lo0 interface with multiple IPs configured ?

    Posted 03-11-2020 06:30

    thanks !!