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In Linux 3.9 there's a packet filter module called xt_bpf that can take compiled BPF bytecode and use it directly in an iptables rule.

Is there any equivalent for FreeBSD's ipfw system?

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You can try netgraph node ng_bpf.

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  • thanks - looks useful. Do you happen to have any pointers on how to integrate netgraph with ipfw? Commented Jan 5, 2016 at 12:03
  • You need to use ng_ipfw. Alas i have no exapmles right now. Commented Jan 5, 2016 at 13:23
  • thanks anyway - unfortunately the documentation for ng_ipfw appears to be very poor :( Commented Jan 5, 2016 at 13:24

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