rpm -ivh libmnl-devel-1.0.2-3.el6.x86_64.rpm libmnl-1.0.2-3.el6.x86_64.rpm
tar xvf ipset-6.24.tar.bz2
cd ipset-6.24
./configure
make
make install

configure: error: Invalid kernel source directory /lib/modules/2.6.32-358.el6.x86_64/source

 n, create SETNAME TYPENAME [ CREATE-OPTIONS ]

 TYPENAME := method:datatype[,datatype[,datatype]]

bitmap, hash, list

ip, net, mac, port, iface

add SETNAME ADD-ENTRY [ ADD-OPTIONS ]

$ipset creat foo hash:ip,port,ip
$ipset add foo ipaddr,portnum,ipaddr

$ipset list foo
Name: foo
Type: hash:ip,port,ip
Revision: 2
Header: family inet hashsize 1024 maxelem 65536
Size in memory: 16584
References: 0
Members:
192.168.1.2,tcp:80,192.168.1.3

del SETNAME DEL-ENTRY [ DEL-OPTIONS ]

test SETNAME TEST-ENTRY [ TEST-OPTIONS ]

list [ SETNAME ] [ OPTIONS ]

save [ SETNAME ]

flush [ SETNAME ]
  Flush all entries from the specified set or flush all sets if none is given.

e, rename SETNAME-FROM SETNAME-TO
  Rename a set. Set identified by SETNAME-TO must not exist.

w, swap SETNAME-FROM SETNAME-TO
  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.

help [ TYPENAME ]
  Print help and set type specific help if TYPENAME is specified.

version
  Print program version.

-  If a dash is specified as command, then ipset enters a simple interactive mode and the commands are read from the standard input. The interactive mode can be finished by entering the
  pseudo-command quit.

-A POSTROUTING -m set --match-set felix-masq-ipam-pools src -m set ! --match-set felix-all-ipam-pools dst -j MASQUERADE

set
This module matches IP sets which can be defined by ipset(8).

[!] --match-set setname flag[,flag]...
  where flags are the comma separated list of src and/or dst specifications and there can be no more than six of them. Hence the command

  iptables -A FORWARD -m set --match-set test src,dst
...

SET
This module adds and/or deletes entries from IP sets which can be defined by ipset(8).

--add-set setname flag[,flag...]
  add the address(es)/port(s) of the packet to the set

--del-set setname flag[,flag...]
  delete the address(es)/port(s) of the packet from the set

  where flag(s) are src and/or dst specifications and there can be no more than six of them.
...