The following thread and the answer of kstar9200 helped me to solve the issue. https://communities.cisco.com/docs/DOC-45632 Regards

Thanks a lot Ashish Shirkar for your great explanation of this topic! Now I understand what's the difference in defining an IP or an interface in 'ip route' statements.Tomorrow I have my CCNA exam - in case there is a question on this, I'm sure I wil...