Block incoming pings while allowing outgoing pings

Aug 26, '03 09:39:00AM

Contributed by: macubergeek

I use the shareware product Brickhouse to manage my ipfw host firewall rules on my mac. Here is how to permit your Mac to ping outbound, but also block incoming pings.

Create two custom services:

So some of you might say "Well ipfw is stateful packet inspection, why do I need to do the second rule?" Because ipfw dosn't keep state on icmp.

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