An engineer is reviewing a ticket that requests to allow traffic for some devices that must connect to a server over 8699/udp. The request mentions only one IP address, 172.16.18.15, but the requestor asked for the engineer to open the port for all machines that have been trying to connect to it over the last week. Which action must the engineer take to troubleshoot this issue?
A. Use the context explorer to see the application blocks by protocol.
B. Use the context explorer to see the destination port blocks
C. Filter the connection events by the source port 8699/udp.
D. Filter the connection events by the destination port 8699/udp.
