.TP [\fB!\fP] \fB--ipsrc\fP \fIaddr\fP Match packets that have \fIaddr\fP as source address. .TP [\fB!\fP] \fB--ipdst\fP \fIaddr\fP Match packets that have \fIaddr\fP as destination address. .PP The ipaddr module serves only as a demonstration. It is equivalent to the iptables \fB-s\fP and \fB-d\fP options, but ipaddr does not support masks.