We're Sorry, Full Content Access is for Members Only...

If you like to keep on reading, Become a Member Now! Here is why:

  • Learn any CCNA, CCNP and CCIE R&S Topic. Explained As Simple As Possible.
  • Try for Just $1. The Best Dollar You've Ever Spent on Your Cisco Career!
  • Full Access to our 651 Lessons. More Lessons Added Every Week!
  • Content created by Rene Molenaar (CCIE #41726)

482 Sign Ups in the last 30 days

100% Satisfaction Guaranteed!
You may cancel your monthly membership at any time.
No Questions Asked!

Tags: , ,

Forum Replies

  1. Hi Rene,
    So we call DMVPN is Dynamic mGRE alternatively , rignt ??

    One more confusion regarding the output …

    Spoke1#show ip route rip 
 is subnetted, 1 subnets
    R [120/1] via, 00:00:10, Tunnel0
 is subnetted, 1 subnets
    R [120/2] via, 00:00:10, Tunnel0

    when Spoke1 want to reach Spoke2( , what will be next hop in DMVPN Phase 1 ?? . Its showing but all traffic will go through HUB, right ?Thanks


  2. Hi,

    In one of last capture images, the lesson says : “Above you can see the NBMA addresses”. That is said about loopback adresses and that are attached to Spoke-1 and Spoke-2 routers.

    In the context of NHRP, could we say that NBMA does mean the same thing as the whole underlay network (including all “public” networks learned by the Spoke) ?

  3. Hello Maodo

    The NBMA in this particular example refers to the nature of the actual physical network, and the addressing of the physical interfaces connected to the medium. That is, the 192.168.123.X subnet. So if this is what you mean by the whole underlay network, then yes you are correct.

    I hope this has been helpful!


  4. Hello Tariq

    It seems that others are having similar issues with the ip summary address command when using the RIP protocol. Even so, the solution is not the default-information originate command.

    These two commands do different things.

    Default-information originate will advertise default route, while ip summary-address rip will advertise only default route and will hide topology details. Remember that the ip summary-address command can use a more specific route, such as ip summary-address rip, it does not have to be 0.0.0

    ... Continue reading in our forum

  5. Hello Laz,

    Thank you for the feedback, however I decided to simulate again with a vIOS and I received the summary-address as expected, so I guess the issue might be a bug on the initial IOS I was using which was the IOS 15.2 on a 7200.



19 more replies! Ask a question or join the discussion by visiting our Community Forum