300-730 · Question #206
In which two ways is routing information exchanged between routers configured for FlexVPN? (Choose two.)
The correct answer is A. IKEv2 routing. FlexVPN exchanges routing information between peers using IKEv2's built-in route distribution feature, which passes prefix data during IKE negotiation.
Question
Options
- AIKEv2 routing
- BOSPFv3
- CIP SLA
- Dstatic routing
- Epolicy-based routing
How the community answered
(30 responses)- A93% (28)
- B3% (1)
- D3% (1)
Why each option
FlexVPN exchanges routing information between peers using IKEv2's built-in route distribution feature, which passes prefix data during IKE negotiation.
IKEv2 routing (IKEv2 route distribution) is a FlexVPN-native mechanism that uses the IKEv2 Configuration Payload to advertise and receive IP prefixes between peers at tunnel setup time, allowing spoke routers to learn hub-side routes without running a separate routing protocol over the tunnel.
OSPFv3 is an IPv6-capable routing protocol that can run over a tunnel but is not a built-in FlexVPN routing exchange mechanism - it requires additional configuration and is not FlexVPN-specific.
IP SLA is a network performance monitoring and measurement tool used for tracking reachability and latency - it does not exchange or distribute routing information between peers.
Static routing involves manually configured routes on each device individually and does not constitute an exchange of routing information between peers.
Policy-based routing redirects traffic locally based on match criteria applied to an interface - it does not propagate or exchange routing information to remote peers.
Concept tested: FlexVPN IKEv2 route distribution between peers
Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_conn_flexvpn/configuration/xe-16/sec-conn-flexvpn-xe-16-book/sec-conn-flexvpn-flexvpn.html
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