\fBw\fP, \fBswap\fP \fISETNAME\-FROM\fP \fISETNAME\-TO\fP
Swap the content of two sets, or in another words,
exchange the name of two sets. The referred sets must exist and
-identical type of sets can be swapped only.
+compatible type of sets can be swapped only.
.TP
\fBhelp\fP [ \fITYPENAME\fP ]
Print help and set type specific help if
in square brackets. Example:
.IP
ipset add foo [test\-hostname],[ftp\-data]
-.PP
+.PP
In the case of host names the DNS resolver is called internally
by \fBipset\fR but if it returns multiple IP addresses, only the
first one is used.
using the \fB\-exist\fR option. Example:
.IP
ipset create test hash:ip timeout 300
-.IP
+.IP
ipset add test 192.168.0.1 timeout 60
-.IP
+.IP
ipset \-exist add test 192.168.0.1 timeout 600
.PP
.SS nomatch
to a set with non\-zero counter values:
.IP
ipset create foo hash:ip counters
-.IP
+.IP
ipset add foo 192.168.1.1 packets 42 bytes 1024
.PP
.SH "SET TYPES"