.BR charon.plugins.socket-default.set_source " [yes]"
Set source address on outbound packets, if possible.
.TP
+.BR charon.plugins.socket-default.use_ipv4 " [yes]"
+Listen on IPv4, if possible.
+.TP
+.BR charon.plugins.socket-default.use_ipv6 " [yes]"
+Listen on IPv6, if possible.
+.TP
.BR charon.plugins.sql.database
Database URI for charons SQL plugin
.TP