Rules for ICMP Type X Code Y

bgardner@iprotech.info
Thu, 05 Nov 2009 17:14:32 -0000

Is it possible to create rules that apply to specific codes of ICMP types?

The AllowICMPs macro seems to have this type of precision for ICMP type 3 code
4.

How can I write a rule that has this kind of precision for arbitrary ICMP
types/codes?