Hi there - I am inquiring about documentation with respect to the scrub directive. More specifically, exactly what the normalization *is*. The manpage, pf.conf(5), states the following:
Packet normalization is invoked via the scrub directive. Normalization is used to sanitize packet content in such a way that there are no ambi- guities in packet interpretation on the receiving side. That snippet, imo, is a bit vague. I believe that some of the normalization was loosely based on the Mark Handley and Vern Paxson paper[1]... Thanks in advance, Chris [1] http://www.icir.org/vern/papers/norm-usenix-sec-01-html
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