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Forum Replies

  1. Renee

    Hoe gaat het in Nederland meneer

    I have a question please on the use of the router ID - the question is this … when I DO NOT configure a router ID on my OSPF routers in my lab network BUT I AM using Loopback interfaces (and as expected given OSPF rules) my single Loopback interface(s) (with Loopback 0 only configured per router) … will be used as the router ID … so no problem there … however when I configure a unique and different router ID, i.e. NOT my loopback interface 0 … as my router ID this will become my dominant ‘neigbor ID’ presumably when formin

    ... Continue reading in our forum

  2. William,
    It is considered best practice always to set the OSPF router-id manually, whether you happen to have a loopback or not. The reason for this is because there are certain OSPF functions that will break should the Router-ID ever change (an OSPF virtual link is a great example of this). If you rely on OSPF automatically choosing its Router-ID based on a loopback you have configured, this is no guarantee that the Router-ID wouldn’t change later (for example, you later needed another loopback for some other purpose, and this new loopback had a higher IP ad

    ... Continue reading in our forum

  3. Hi willam,
    Same thing I am getting in my lab devices when I am trying to change the RID based on automatically thumbrule of RID selection which Rene mentioned in lesson,

    Highest IP address on a non-loopback interface.
    Non loopback means physical interface

    Why it’s not effecting in OSPF database?
    I tried with ip OSPF process and ip OSPF process id process but same result,it’s effecting when I am trying to do follow below mention 3 steps,
    1.when I rebooting the Router .
    Or
    2.when i remove the ip address from the interface (which is stored in OSPF database) then

    ... Continue reading in our forum

  4. Hi willam,
    Same thing I am getting in my lab devices when I am trying to change the RID based on automatically thumbrule of RID selection which Rene mentioned in lesson,

    Highest IP address on a non-loopback interface.
    Non loopback means physical interface

    Why it’s not effecting in OSPF database?
    I tried with ip OSPF process and ip OSPF process id process but same result,it’s effecting when I am trying to do follow below mention 3 steps,
    1.when I rebooting the Router .
    Or
    2.when i remove the ip address from the interface (which is stored in OSPF database) then t

    ... Continue reading in our forum

  5. Hi Andrew,
    sorry wrongly i typed “Hi William,”:grinning: So Andrew Same thing I am getting in my lab devices when I am trying to change the RID based on automatically thumbrule of RID selection which Rene mentioned in lesson,

    Highest IP address on a non-loopback interface.
    Non loopback means physical interface

    Why it’s not effecting in OSPF database?
    I tried with ip OSPF process and ip OSPF process id process but same result,it’s effecting when I am trying to do follow below mention 3 steps,
    1.when I rebooting the Router .
    Or
    2. when I removing the OSPF configuration (n

    ... Continue reading in our forum

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