What is the difference between a Policy-based VPN and a Route-based VPN?
https://kb.juniper.net/InfoCenter/index?page=content&id=KB10105
A Policy Based VPN is a configuration in which a specific VPN tunnel is referenced in a policy whose action is set as Tunnel. ( security policies xxx then permit tunnel xxxxx )
A Route Based VPN is a configuration, in which the policy does not reference a specific VPN tunnel. Instead, a VPN tunnel is indirectly referenced by a route that points to a specific tunnel interface.
The tunnel interface may be bound to a VPN tunnel or to a tunnel zone
( security ipsec vpn ike-vpn-srx1 bind-interface st0.0 )
SRX & J Series Site-to-Site VPN Configuration Generator
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