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A customer has a Contivity 5000 at a site with two Branch Office tunnel connections. The branch office tunnels use RIP for tunnel endpoint establishment. During setup of the Contivity 5000, the customer setup and enabled Contivity Interface Filters. Shortly afterwards they notice that the Branch Office tunnel has gone down. What is the possible cause of the problem?
A. The interface filter is set to deny TCP.
B. The interface filter is set to deny UDP.
C. The interface filter is set to block the origin IP.
D. An interface filter and a firewall is turned on at the same time.
Answer: B
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