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The requirement states that administators want to see traffic going to and coming from BB1.  It also states that it wants to use Netflow version 5. 

This in itself is a problem.  In order to see the egress flows, you must configure 'ip flow egress' on the interface.  But, in order for the Netflow server to handle that, it must be version 9 - according to some information I found.

To handle the requirements, I feel the following should be done on the interface:

ip flow egress

ip flow ingress

And, the version should be changed to Version 9.

Where did you find information about requirement to use netflow v9 for egrees? I don't have chance to verify it now, but I think that it worked fine with v5 for one of my customers.

Cheers,

Seba

The command in the solutinos guide is outdated and is being replaced with "ip flow ingress".   See the follwing.

http://www.cisco.com/en/US/partner/docs/ios/netflow/command/reference/nf_01.html#wp1049320

"ip flow egress" is not an applicable answer to the question because of the IOS versions. If you do get a question in the lab which wants you to netflow in both directions on an interface the only way that is possible is really by enabling flow cache on all interface of that router in the same routing space. This will capture everything except locally sourced traffic from that router.

Thats my opinion on the best answer anyway..

By the way version 9 will not allow you to use "ip flow egress" on 12.[23]T from what I've seen either.