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- #!/bin/sh
- ipfw -q -f flush
- cmd="ipfw -q add"
- nic="em0"
- $cmd 00010 pass all from any to any via lo0
- $cmd 00011 drop log ip4 from any to any in via $nic \
- tcpdatalen 0 \
- tcpflags syn,!fin,!rst,!psh,!ack,!urg \
- tcpoptions mss,window,sack,ts \
- tcpwin 1
- $cmd 00012 drop log ip4 from any to any in via $nic \
- tcpdatalen 0 \
- tcpflags syn,!fin,!rst,!psh,!ack,!urg \
- tcpoptions mss,window,sack,ts \
- tcpwin 63
- $cmd 00013 drop log ip4 from any to any in via $nic \
- tcpdatalen 0 \
- tcpflags syn,!fin,!rst,!psh,!ack,!urg \
- tcpoptions mss,window,ts \
- tcpwin 4
- $cmd 00014 drop log ip4 from any to any in via $nic \
- tcpdatalen 0 \
- tcpflags syn,!fin,!rst,!psh,!ack,!urg \
- tcpoptions window,sack,ts \
- tcpwin 4
- $cmd 00015 drop log ip4 from any to any in via $nic \
- tcpdatalen 0 \
- tcpflags syn,!fin,!rst,!psh,!ack,!urg \
- tcpoptions mss,window,sack,ts \
- tcpwin 16
- $cmd 00016 drop log ip4 from any to any in via $nic \
- tcpdatalen 0 \
- tcpflags syn,!fin,!rst,!psh,!ack,!urg \
- tcpoptions mss,sack,ts \
- tcpwin 512
- $cmd 00020 pass all from any to any via $nic
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