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VPN and unavailability of external interface after establishing a tunnel

I am interested in finding out, if I have a tunneled in (established IPSec connection via remote VPN) and then what happens if external interface becomes unavailable?

Do I still maintain connection, if I my tunneled gateway is on internal interface?

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Re: VPN and unavailability of external interface after establish

I think the tunnel will still be there for some time even after the external interface becomes unavailable however traffic will not be able to flow. I think clearing the security associations can help to remove the connection.

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