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Forum Replies

  1. If I remember well, the same thing if we put 172.17.1.0/24 and 172.17.2.0/24 insteadof 192.168… Because 172.17 … Is another major network… Right??

  2. Hi Francesco,

    Those two networks are from the class B range so yes, they would be summarized to 172.17.0.0/16.

    192.168.X.0/24 is no problem btw…this is a class C network.

    Rene

  3. Hi Rene ,

    Is “Discontiguous Network” issue is due mainly classfull routing lookup ? , because it will do look up only classfull manner , like router has to do a look up for destination network 10.11.1.0 /24 , as the 1st octate is belongs to class A range it wont check further the the mask part , if network not existing it will drop it ?

    Can you guide on “Discontiguous Network” and its solution aprroach .

    Regards,
    Sameer.

  4. Hello Sameer

    For the explanation, I will use the subnets used in the lesson.

    The problem with classful networks is that if there is a destination of 172.16.1.0/24 this will be installed in the routing table as 172.16.0.0/16 since 172.16.X.X is a class B network. This works fine as long as all destinations of 172.16.0.0/16 are to be routed via the same interface.

    However, if you have a case such as this, discontiguous networks with classful routing presents a problem:

    //cdn-forum.networklessons.com/uploads/default/original/1X/535fc38fd51b128a70433f665e2b261549

    ... Continue reading in our forum

  5. Thank you Laz!!
    Regards,
    Sameer.

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