NIDA needs branch routers to build on-demand tunnels directly to each other while using the hub only for control-plane lookups. Which Cisco technology provides this behaviour?
Answers
AStatic IPsec tunnel pairs between every branch
BGETVPN with a matching pre-shared key
CDMVPN using mGRE and NHRP
DFlexVPN with a dialer interface per branch
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