消したやつに向けて一度 ping 打つと、ping かかるようになりますね。
同じのがまた入るのに。
banana3215%arp -a
(略)
banana3214.maido3.com (207.29.253.220) at 00:19:d1:b0:32:14 on em0 [ethernet]
(略)
banana3215%ping banana3214.maido3.com
PING banana3214.maido3.com (207.29.253.220): 56 data bytes
^C
--- banana3214.maido3.com ping statistics ---
3 packets transmitted, 0 packets received, 100% packet loss
%arp -d banana3214.maido3.com
banana3214.maido3.com (207.29.253.220) deleted
%ping banana3214.maido3.com
PING banana3214.maido3.com (207.29.253.220): 56 data bytes
64 bytes from 207.29.253.220: icmp_seq=0 ttl=64 time=0.929 ms
64 bytes from 207.29.253.220: icmp_seq=1 ttl=64 time=0.349 ms
64 bytes from 207.29.253.220: icmp_seq=2 ttl=64 time=0.368 ms
64 bytes from 207.29.253.220: icmp_seq=3 ttl=64 time=0.355 ms
64 bytes from 207.29.253.220: icmp_seq=4 ttl=64 time=0.486 ms
64 bytes from 207.29.253.220: icmp_seq=5 ttl=64 time=1.032 ms
^C
--- banana3214.maido3.com ping statistics ---
%arp -a
(略)
banana3214.maido3.com (207.29.253.220) at 00:19:d1:b0:32:14 on em0 [ethernet]
(略)
