VPN Net-to-Net with 2 ASL boxes

Is it possible to setup a VPN Net-to-Net connection between two networks with 2 ASL boxes?
EDIT: Apparently So

Example:
(Internal Network)---(ASL)====(VPN through internet)====(ASL)---(Internal Network)


EDIT: Of course, right after I post this I find the IPSec Connection Net-to-Net (RSA) guidebook.
http://docs.astaro.org/guidebooks/Guidebook-US-ASL-V4_rsa_net-to-net.pdf

UPDATE Question:  Do any static routes need to be established on either side so 192.168.0.xxx can see 192.168.1.xxx ect?
      

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