13 lines
362 B
Groff
13 lines
362 B
Groff
# block all ICMP packets.
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#
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block in proto icmp all
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#
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# allow in ICMP echos and echo-replies.
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#
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pass in on le1 proto icmp from any to any icmp-type echo
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pass in on le1 proto icmp from any to any icmp-type echorep
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#
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# block all ICMP destination unreachable packets which are port-unreachables
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#
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block in on le1 proto icmp from any to any icmp-type unreach code 3
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