QID:RTE235 GRE over IPSec tunnel

[DriveOn]

So you're referring to the line that reads "crypto isakmp key ******** address 172.16.1.2"? 

That makes sense. 

Still I think it helps to understand the Cisco security features which the ROUTE curriculum doesn't really delve into.  That's okay though.  Just makes me look forward to CCNA Security someday.

Thanks again!