[질문]ping 을 했을때 DUP이 나오면 뭔가요?

[감자탱이]

ping 을 다른 서버에 했는데 아래와 같이 DUP 이 나옵니다.

이거 뭐가 문제 인가요? 답변 요청 드립니다.

[wamc_b3:root]/>ping 128.17.22.11
PING 128.17.22.11: (128.17.22.11): 56 data bytes
64 bytes from 128.17.22.11: icmp_seq=0 ttl=253 time=0 ms
64 bytes from 128.17.22.11: icmp_seq=0 ttl=253 time=2 ms (DUP!)
64 bytes from 128.17.22.11: icmp_seq=1 ttl=253 time=0 ms
64 bytes from 128.17.22.11: icmp_seq=1 ttl=253 time=2 ms (DUP!)
64 bytes from 128.17.22.11: icmp_seq=2 ttl=253 time=0 ms
64 bytes from 128.17.22.11: icmp_seq=2 ttl=253 time=2 ms (DUP!)
64 bytes from 128.17.22.11: icmp_seq=3 ttl=253 time=0 ms
64 bytes from 128.17.22.11: icmp_seq=3 ttl=253 time=2 ms (DUP!)
64 bytes from 128.17.22.11: icmp_seq=4 ttl=253 time=0 ms
64 bytes from 128.17.22.11: icmp_seq=4 ttl=253 time=2 ms (DUP!)
64 bytes from 128.17.22.11: icmp_seq=5 ttl=253 time=0 ms
64 bytes from 128.17.22.11: icmp_seq=5 ttl=253 time=1 ms (DUP!)
64 bytes from 128.17.22.11: icmp_seq=6 ttl=253 time=0 ms
64 bytes from 128.17.22.11: icmp_seq=6 ttl=253 time=1 ms (DUP!)
64 bytes from 128.17.22.11: icmp_seq=7 ttl=253 time=0 ms
64 bytes from 128.17.22.11: icmp_seq=7 ttl=253 time=1 ms (DUP!)
64 bytes from 128.17.22.11: icmp_seq=8 ttl=253 time=0 ms
64 bytes from 128.17.22.11: icmp_seq=8 ttl=253 time=1 ms (DUP!)
64 bytes from 128.17.22.11: icmp_seq=9 ttl=253 time=0 ms
64 bytes from 128.17.22.11: icmp_seq=9 ttl=253 time=2 ms (DUP!)
64 bytes from 128.17.22.11: icmp_seq=10 ttl=253 time=0 ms
64 bytes from 128.17.22.11: icmp_seq=10 ttl=253 time=2 ms (DUP!)
64 bytes from 128.17.22.11: icmp_seq=11 ttl=253 time=0 ms
64 bytes from 128.17.22.11: icmp_seq=11 ttl=253 time=2 ms (DUP!)
64 bytes from 128.17.22.11: icmp_seq=12 ttl=253 time=0 ms
64 bytes from 128.17.22.11: icmp_seq=12 ttl=253 time=2 ms (DUP!)
64 bytes from 128.17.22.11: icmp_seq=13 ttl=253 time=0 ms
64 bytes from 128.17.22.11: icmp_seq=13 ttl=253 time=2 ms (DUP!)
^C
----128.17.22.11 PING Statistics----
14 packets transmitted, 14 packets received, +14 duplicates, 0% packet loss
round-trip min/avg/max = 0/0/2 ms
[wamc_b3:root]/>

[아작내기]

Duplicate 의 약자인듯한데요..Seq가 같다는 뜻인듯은 하지만 왜 두개일까요? 패킷을 캡쳐하여 ICMP 에러메시지를 보셔야 될 듯 ^^

[root]

DUP는 처음보는대요 .. 저런뜻이있었구나.ㅎㅎ

[하나둘]

ip 중복 입니다....