Structured Firewall Design:Motivation The convention of designing a firewall directly as a sequence of conflicting rules has been taken for granted We point out that this convention is BAD. Why:this convention has three major issues -Consistency issue Completeness issue -Compactness issue 88 Structured Firewall Design: Motivation  The convention of designing a firewall directly as a sequence of conflicting rules has been taken for granted  We point out that this convention is BAD.  Why: this convention has three major issues ─ Consistency issue ─ Completeness issue ─ Compactness issue