CISCO VTI Example

http://www.cisco.com/en/US/technologies/tk583/tk372/technologies_white_paper0900aecd8029d629.html

I'm trying to set up a VTI between an ASA and a Router. I'm following an official CISCO example on the link above. And I'm confused about the 'IP route 0.0.0.0 0.0.0.0 10.0.149.1' command on both routers. As I can't see the address anywhere in the topology! Unless I'm being blind.

Am I missing something?

I would think the gateway for that command would be;
R1 10.0.149.221 or 192.168.10.1
R2 10.0.149.220 or 192.168.10.2

 Thanks