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PING koreafree.co.kr (121.254.171.116) 56(84) bytes of data.
From web116.koreafree.co.kr (121.254.171.116) icmp_seq=1 Destination Port Unreachable
From web116.koreafree.co.kr (121.254.171.116) icmp_seq=2 Destination Port Unreachable
From web116.koreafree.co.kr (121.254.171.116) icmp_seq=3 Destination Port Unreachable

--- koreafree.co.kr ping statistics ---
3 packets transmitted, 0 received, +3 errors, 100% packet loss, time 2000ms


        
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