What is the purpose of “vpn 0” in the configuration template when onboarding a WAN Edge node?
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It carries control traffic over secure IPsec connections between vSmart controllers and vEdge routers, and between vEdge and vManager.
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It carries control traffic over secure IPsec connections between vSmart controllers and vEdge routers, and between vSmart and vBond.
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It carries control traffic over secure DTLS or TLS connections between vSmart controllers and vEdge routers, and between vSmart and vBond.
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It carries out-of-band network management traffic among the Viptela devices in the overlay network.

