I'd like to configure and start ipfw on Macs running Lion, Mountain Lion.

I found that pfctl is configured and started with:


How is ipfw configured and launched?

  • I updated my original question to clarify that I'm not talking of packet filter but ip firewall. – dan Oct 29 '13 at 20:45

This guide: Setting Up ipfw on Mac OS X, shows you how to set up IPFW on Mac OS X. The article was posted in 2012, so should apply to Lion/ML.

  • Well documented answer ☺. – dan Dec 7 '13 at 14:55

ipfw is configured in /etc/pf.conf

You can configure the ipfw using a GUI in IceFloor.

IceFloor: Filter inbound connections

  • → grgarside: thank you for the usefull info. But, /etc/pf.conf and IceFloor are for packet filter. I want to use the basic ipfw. – dan Oct 29 '13 at 20:51

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