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On ubuntu Netfilter problems setting up the rules of the INPUT chain

Time:09-20

Using iptables to filter the INPUT chain is set to the default DROP,
Then destination IP for the native IP packet ACCEPT, but wireshark can't reach the destination address for the machine IP packets, and can't get to the Internet, as shown in figure

When does not limit the destination IP Settings INPUT chain, Internet access, as shown in figure

Want to ask the reason, I feel restricted purpose for the machine IP address should be also able to surf the Internet?
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