ASA and PIX 7.X have a feature call packet tracer, this tool allows the asa to trace the path that a packet will follow by "simulating" this packet as it arrives on the selected interface and goes through the whole appliance, this can be used to simulate a packet going from inside to outside matching the vpn policy, there was a bug on some versions where this feature would not match the vpn policy hopefully it has been fixed.
As well you can use the management-access interface command to use the inside or whichever interface you want to source the traffic via a ping and make the tunnel to come up, note this management access traffic generated command will not be subject to nat or to some filtering polices so it might not apply completely, check the following links:
Login to the FXOS chassis manager.
Direct your browser to https://hostname/, and log-in using the user-name and password.
Go to Help > About and check the current version:
Check the current version availa...
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...