Troubleshooting and Maintaining Cisco IP Networks (TSHOOT, legacy) — Question 29

When troubleshooting recursive routing issues with GRE tunnels, which three actions resolve the issue? (Choose three.)

Answer options

• A. Remove the configuration on the tunnel interface and reconfigure
• B. Perform shut and no shut commands on the tunnel interface
• C. Add static routes for the tunnel source and destination
• D. Remove the network advertisements from the routing protocols
• E. Change the tunnel source or destination interface
• F. If using OSPF to peer across the tunnel, use EIGRP instead

Correct answer: C, D, E

Explanation

The correct actions involve adding static routes for the tunnel source and destination, removing network advertisements that may cause conflicts, and changing the tunnel source or destination interface to ensure proper routing. The other options either do not directly address the recursive routing issue or suggest unnecessary changes.