Final test: Networking

Read the output

A request from 192.0.2.20 to port 8080 waits until the timeout. Here is the server's input chain after the request. Why?

type filter hook input priority filter; policy drop;
iif "lo" accept
ip saddr 192.0.2.20 tcp dport 8081 counter packets 0 bytes 0 accept
counter packets 7 bytes 444 drop

• A The drop policy beats any accept.
• B The accept rule is broken.
• C The request did not leave from 192.0.2.20.
• D The permission is for port 8081.