1This module matches the parameters in IPcomp header of IPsec packets. 2.TP 3[\fB!\fP] \fB\-\-ipcompspi\fP \fIspi\fP[\fB:\fP\fIspi\fP] 4Matches IPcomp header CPI value. 5.TP 6\fB\-\-compres\fP 7Matches if the reserved field is filled with zero. 8