Exam 350-401 Topic 6 Question 469 Discussion

Actual exam question for Cisco's 350-401 exam
Question #: 469
Topic #: 6
A GRE tunnel is down with the error message %TUN-5-RECUR DOWN:

Which two options describe possible causes of the error? (Choose two)

Suggested Answer: D,E Vote an answer

Explanation
The %TUN-5-RECURDOWN: Tunnel0 temporarily disabled due to recursive routing error message means that the generic routing encapsulation (GRE) tunnel router has discovered a recursive routing problem. This condition is usually due to one of these causes:
+ A misconfiguration that causes the router to try to route to the tunnel destination address using the tunnel interface itself (recursive routing)
+ A temporary instability caused by route flapping elsewhere in the network
Reference: https://www.cisco.com/c/en/us/support/docs/ip/enhanced-interior-gateway-routingprotocol-eigrp/22327-gre-flap.html

by Donahue at Jan 19, 2024, 04:16 AM

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