.TH xtables-addons 8 "v1.24 (2010-03-17)" "" "v1.24 (2010-03-17)" .SH Name Xtables-addons \(em additional extensions for iptables, ip6tables, etc. .SH Targets .\" @TARGET@ .SH Matches .\" @MATCHES@ .SH "SEE ALSO" \fBiptables\fP(8), \fBip6tables\fP(8) .PP For developers, the book "Writing Netfilter modules" at http://jengelh.medozas.de/documents/Netfilter_Modules.pdf provides detailed information on how to write such modules/extensions.