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Tunnel Interface IP Address

L4 Transporter

Can somebody explain to me the need for the tunnel interface IP address? Apparently a VPN tunnel requires a tunnel interface configured with an IP address when using dynamic routing. Is that a dynamic gateway the PA is connecting to or the PA is using a dynamic IP? Also, does this IP address have to live on the same network as the local network? During testing I've used a completely random IP address and the tunnel has still worked. Maybe it wasn't even being used though because I had a lan to lan with static IPs.

I couldn't find any good details on this anywhere. A good explanation from the experts would be appreciated. Smiley Happy__

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