Ситуация странная, судите сами!!!запускаем: nmap -O -vv 192.168.101.11
видим:
tcpdump -l -e -n -ttt -i pflog0
tcpdump: WARNING: pflog0: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on pflog0, link-type PFLOG (OpenBSD pflog file), capture size 68 bytes
000000 rule 37/0(match): pass in on em0: 10.50.4.58 > 192.168.101.11: [|icmp]
000237 rule 4/0(match): block in on em0: 10.50.4.58 > 192.168.101.11: [|tcp]
130065 rule 4/0(match): block in on em0: 10.50.4.58 > 192.168.101.11: [|tcp]
000601 rule 4/0(match): block in on em0: 10.50.4.58 > 192.168.101.11: [|tcp]
000249 rule 4/0(match): block in on em0: 10.50.4.58 > 192.168.101.11: [|tcp]
000498 rule 6/0(match): block in on em0: 10.50.4.58 > 192.168.101.11: [|tcp]
Нет указания портов,ttl etc, только протокол:-(