The following system log message is presented after a network administrator configures a GRE tunnel: %TUN-RECURDOWN Interface Tunnel 0 temporarily disabled due to recursive routing Why is Tunnel 0 disabled?
A.
Because dynamic routing is not enabled.
B.
Because the tunnel cannot reach its tunnel destination.
C.
Because the best path to the tunnel destination is through the tunnel itself.
D.
Because the router cannot recursively identify its egress forwarding interface.
Recursive routing in GRE is when it detects that the best route to reach the tunnel is by the tunnel itself, this scenario happen usually when both phisical and tunnel interface are aggregated on the same routing protocol.
source ENCORE OCG. gre tunnel section.
and here the explanation to complete it
https://www.cisco.com/c/en/us/support/docs/ip/enhanced-interior-gateway-routing-protocol-eigrp/22327-gre-flap.html
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
This section is not available anymore. Please use the main Exam Page.350-401 Exam Questions
Log in to ExamTopics
Sign in:
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.
Upvoting a comment with a selected answer will also increase the vote count towards that answer by one.
So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.
Eddgar0
Highly Voted 2 years, 6 months ago[Removed]
Highly Voted 3 years, 5 months agoXalaGyan
2 years, 11 months ago[Removed]
Most Recent 5 months, 1 week agoPudu_vlad
2 years, 4 months agociscolessons
2 years, 8 months agoerror_909
3 years, 1 month ago