This is the ipset source tree. Follow the next steps to install ipset. If you upgrade from an earlier 5.x release, please read the UPGRADE instructions too.

0. You need the source tree of your kernel (version >= 2.6.32) and it have to be configured with ip6tables support enabled, modules compiled. For kernel versions < 2.6.39 please apply the netlink.patch against your kernel tree, which adds the new subsystem identifier for ipset.

   Recompile and install the patched kernel and its modules. Please note, you have to run the patched kernel for ipset to work.

   The ipset source code depends on the libmnl library so the library must be installed. You can download the libmnl library from

   git://git.netfilter.org/libmnl.git

1. Initialize the compiling environment for ipset. The packages automake, autoconf, pkg-config and libtool are required.

   % ./autogen.sh

2. Run ./configure and then compile the ipset binary and the kernel modules.

   Configure parameters can be used to to override the default path to the kernel source tree (/lib/modules/uname -r/build), the maximum number of sets (256), the default hash sizes (1024). See ./configure --help.

   % ./configure % make % make modules

3. Install the binary and the kernel modules

   make install

   make modules_install

   After installing the modules, you can run the testsuite as well. Please note, several assumptions must be met for the testsuite:

   • no sets defined
   • iptables/ip6tables rules are not set up
   • the destination for kernel logs is /var/log/kern.log
   • the networks 10.255.255.0/24 and 1002:1002:1002:1002::/64 are not in use
   • sendip utility is installed

   make tests

4. Cleanup the source tree

   % make clean % make modules_clean

That's it!

Read the ipset(8) and iptables(8), ip6tables(8) manpages on how to use ipset and its match and target from iptables.

Compatibilities and incompatibilities:

• The ipset 6.x userspace utility contains a backward compatibility interface to support the commandline syntax of ipset 4.x. The commandline syntax of ipset 6.x is fully compatible with 5.x.
• The ipset 6.x userspace utility can't talk to the kernel part of ipset 5.x or 4.x.
• The ipset 6.x kernel part can't talk to the userspace utility from ipset 5.x or 4.x.
• The ipset 6.x kernel part can work together with the set match and SET target from iptables 1.4.7 and below, however if you need the IPv6 support from ipset 6.x, then you have to use iptables 1.4.9 or above.

The ipset 6.x can interpret the commandline syntax of ipset 4.x, however some internal changes mean different behaviour:

• The "--matchunset" flag for the macipmap type is ignored and not used anymore.
• The "--probes" and "--resize" parameters of the hash types are ignored and not used anymore.
• The "--from", "--to" and "--network" parameters of the ipporthash, ipportiphash and ipportnethash types are ignored and not used anymore.
• The hash types are not resized when new entries are added by the SET target. If you use a set together with the SET target, create it with the proper size because it won't be resized automatically.
• The iptree, iptreemap types are not implemented in ipset 6.x. The types are automatically substituted with the hash:ip type.