Mac empfängt ICMP-Anforderungen, sendet jedoch keine Antworten

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user1071840

Warum kann mein osx-Rechner ICMP-Anforderungen empfangen (die ich sende), aber keine Antworten zurücksendet?

$ sudo tcpdump -nni any icmp tcpdump: data link type PKTAP tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on any, link-type PKTAP (Packet Tap), capture size 65535 bytes 07:59:37.858801 IP 192.168.1.2 > 192.168.1.5: ICMP echo request, id 1941, seq 6, length 64 07:59:38.882701 IP 192.168.1.2 > 192.168.1.5: ICMP echo request, id 1941, seq 7, length 64 07:59:39.905794 IP 192.168.1.2 > 192.168.1.5: ICMP echo request, id 1941, seq 8, length 64 07:59:40.928857 IP 192.168.1.2 > 192.168.1.5: ICMP echo request, id 1941, seq 9, length 64 07:59:41.953113 IP 192.168.1.2 > 192.168.1.5: ICMP echo request, id 1941, seq 10, length 64 07:59:42.975912 IP 192.168.1.2 > 192.168.1.5: ICMP echo request, id 1941, seq 11, length 64 

Meine Ping-Anfragen:

$ ping 192.168.1.5 PING 192.168.1.5 (192.168.1.5) 56(84) bytes of data. ^C --- 192.168.1.5 ping statistics --- 480 packets transmitted, 0 received, 100% packet loss, time 490401ms 

Die Firewall ist deaktiviert und dies sind meine Portweiterleitungseinstellungen:

scrub-anchor "com.apple/*" nat-anchor "com.apple/*" rdr-anchor "com.apple/*" dummynet-anchor "com.apple/*" anchor "com.apple/*" load anchor "com.apple" from "/etc/pf.anchors/com.apple" pass on lo0 pass on en0 pass on utun0 
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