Cisco VPN Configuration Guide: Step-By-Step Configuration of Cisco VPNs for ASA and Routers: Andrea, Harris: 9781500522902: Amazon.com: Books
Example – Configuring site-to-site VPNs between SRX and Cisco ASA, with multiple networks behind the SRX and ASA, and full mesh traffic between networks (Route-based VPNs)
How To Configure IPsec VPN Between pfSense And Cisco Router? – GetLabsDone
Site to Site IPSec VPN Tunnel between Cisco ASA and Palo Alto Firewalls - The Network DNA
Creating VPN tunnel between Cisco ASA and Watchguard XTM - vEducate.co.uk
RipEX - IPsec - 8. Configuration Example with CISCO router | RACOM