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)

451 Sign Ups in the last 30 days

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


Forum Replies

  1. If you run a Wireshark cap you can see the plain-text passphrase of MYPASS in one of the OSPF header packets

  2. Hi Sudej,

    If you enable authentication for the entire area then you still have to configure the password on the interface.


  3. HI Rene,

    This seems like bad design by Cisco or ignorance on my part. Why enable authentication at the area to save work but still have to go into each interface to add the key?

    I can only think they know something I don’t or they would have made it where you can do both at the global level… anyway thanks for clarifying!

  4. Hello Brian

    The reason the key must be configured on the interface is because each link between two OSPF routers can have a different key. The keys are not global but are specific to the interfaces being connected.

    I hope this has been helpful!


  5. There is very short theory concept about this topic, but practically very explained, you configured many few things on the router, i want to know this is completely configuration of ospf plain text authantiction in CCNP Ospf ?

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