на 192.168.56.10 FreeBSD 10.0-RELEASEipfw nat 1 config if em0 redirect_port tcp 77.234.201.242:80 80
40000 36 2496 nat 1 ip from any to any via em0
60000 0 0 allow ip from any to any
65535 0 0 deny ip from any to any
telnet 192.168.56.10 80 c 192.168.56.1
21:58:33.355535 IP 192.168.56.1.52289 > 192.168.56.10.80: Flags [S], seq 671562569, win 29200, options [mss 1460,sackOK,TS val 10019596 ecr 0,nop,wscale 7], length 0
21:58:33.355807 IP 192.168.56.10.52289 > 77.234.201.242.80: Flags [S], seq 671562569, win 29200, options [mss 1460,sackOK,TS val 10019596 ecr 0,nop,wscale 7], length 0
21:58:33.385629 IP 77.234.201.242.80 > 192.168.56.10.52289: Flags [S.], seq 186268352, ack 671562570, win 65535, options [mss 1460,sackOK,eol], length 0
21:58:33.385968 IP 192.168.56.10.80 > 192.168.56.1.52289: Flags [S.], seq 186268352, ack 671562570, win 65535, options [mss 1460,sackOK,eol], length 0
21:58:33.385988 IP 192.168.56.1.52289 > 192.168.56.10.80: Flags [.], ack 1, win 29200, length 0
21:58:33.386205 IP 192.168.56.10.52289 > 77.234.201.242.80: Flags [.], ack 1, win 29200, length 0
21:58:49.211597 IP 192.168.56.1.52289 > 192.168.56.10.80: Flags [P.], seq 1:6, ack 1, win 29200, length 5
21:58:49.211877 IP 192.168.56.10.52289 > 77.234.201.242.80: Flags [P.], seq 1:6, ack 1, win 29200, length 5
21:58:49.245288 IP 77.234.201.242.80 > 192.168.56.10.52289: Flags [.], ack 6, win 65535, length 0
21:58:49.245525 IP 192.168.56.10.80 > 192.168.56.1.52289: Flags [.], ack 6, win 65535, length 0
21:58:49.246869 IP 77.234.201.242.80 > 192.168.56.10.52289: Flags [P.], seq 1:174, ack 6, win 65535, length 173
21:58:49.246885 IP 77.234.201.242.80 > 192.168.56.10.52289: Flags [F.], seq 174, ack 6, win 65535, length 0
21:58:49.246997 IP 192.168.56.10.80 > 192.168.56.1.52289: Flags [P.], seq 1:174, ack 6, win 65535, length 173
21:58:49.247008 IP 192.168.56.1.52289 > 192.168.56.10.80: Flags [.], ack 174, win 30016, length 0
21:58:49.247051 IP 192.168.56.10.80 > 192.168.56.1.52289: Flags [F.], seq 174, ack 6, win 65535, length 0
21:58:49.247092 IP 192.168.56.10.52289 > 77.234.201.242.80: Flags [.], ack 174, win 30016, length 0
21:58:49.247229 IP 192.168.56.1.52289 > 192.168.56.10.80: Flags [F.], seq 6, ack 175, win 30016, length 0
21:58:49.247807 IP 192.168.56.10.52289 > 77.234.201.242.80: Flags [F.], seq 6, ack 175, win 30016, length 0
21:58:49.283254 IP 77.234.201.242.80 > 192.168.56.10.52289: Flags [.], ack 7, win 65534, length 0
21:58:49.283518 IP 192.168.56.10.80 > 192.168.56.1.52289: Flags [.], ack 7, win 65534, length 0
вроде работает или я вопрос не понял?