Implementing Cisco IP Routing (CCNP ROUTE, legacy) — Question 184

A company has just opened two remote branch offices that need to be connected to the corporate network. Which interface configuration output can be applied to the corporate router to allow communication to the remote sites?

Answer options

• A. interface Tunnel0 bandwidth 1536 ip address 209.165.200.230 255.255.255.224 tunnel source Serial0/0 tunnel mode gre multipoint
• B. interface fa0/0 bandwidth 1536 ip address 209.165.200.230 255.255.255.224 tunnel mode gre multipoint
• C. interface Tunnel0 bandwidth 1536 ip address 209.165.200.231 255.255.255.224 tunnel source 209.165.201.1 tunnel-mode dynamic
• D. interface fa 0/0 bandwidth 1536 ip address 209.165.200.231 255.255.255.224 tunnel source 192.168.161.2 tunnel destination 209.165.201.1

Correct answer:

Explanation

Option A is correct because it sets up a GRE tunnel with the proper source and mode for connecting remote sites. Option B incorrectly uses a FastEthernet interface instead of a tunnel interface, which is not suitable for this purpose. Option C has an incorrect source address for the tunnel and uses dynamic tunnel mode, which may not be appropriate for the scenario. Option D is also incorrect due to using a FastEthernet interface and the wrong tunnel source and destination configuration.