Cisco
300-730 · Question #29
300-730 Question #29: Real Exam Question with Answer & Explanation
The correct answer is C: reverse route injection. Reverse Route Injection (RRI) automatically creates static routes for remote IPsec VPN tunnel endpoints and injects them into the local routing table for dynamic distribution.
Question
Which method dynamically installs the network routes for remote tunnel endpoints?
Options
- Apolicy-based routing
- BCEF
- Creverse route injection
- Droute filtering
Explanation
Reverse Route Injection (RRI) automatically creates static routes for remote IPsec VPN tunnel endpoints and injects them into the local routing table for dynamic distribution.
Common mistakes.
- A. Policy-based routing steers traffic based on defined match criteria and actions, but it does not create or install routing table entries for remote VPN tunnel endpoints.
- B. CEF (Cisco Express Forwarding) is a high-speed packet switching mechanism that builds forwarding tables from existing routing entries - it does not generate or inject routes on its own.
- D. Route filtering controls which routes a routing protocol accepts or advertises between neighbors, but it does not dynamically create or install routes for VPN tunnel endpoints.
Concept tested. Reverse Route Injection for dynamic VPN endpoint route installation
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