Re: OSPF quiz

*Really* nice brain teaser Carlos. For others that are curious, you may
want to check out
http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a008009405a.shtml

specifically, see below. Funny, now I remember writing evil lab questions
and a blog about this very topic a year or so ago! Good to recall stuff like
this from time to time!

   -
>
> The forwarding address is set to 0.0.0.0 if the ASBR redistributes
> routes and OSPF is *not enabled* on the next hop interface for those
> routes. This is true in the figure<http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a008009405a.shtml#figure>if Router 1 does not have OSPF enabled on the Ethernet interface.
>
   -

   These conditions set the forwarding address field to a non-zero address:

   -

      OSPF is enabled on the ASBR's next hop interface AND

      -

      ASBR's next hop interface is non-passive under OSPF AND

      -

      ASBR's next hop interface is *not* point-to-point AND

      -

      ASBR's next hop interface is *not* point-to-multipoint AND

      -

      ASBR's next hop interface address falls under the network range
      specified in the *router ospf* command.

       -

   Any other conditions besides these set the forwarding address to 0.0.0.0.

-- 
Regards,
Joe Astorino
CCIE #24347
Blog: http://astorinonetworks.com
"He not busy being born is busy dying" - Dylan
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