Bug 196234

Description of problem:

IPTABLES has long been included in Fedora.

IPSET is an optional component of IPTABLES (like many optional ones that *are*
included by default in Fedora's iptables build/package) that dramatically improves
administrative and operational efficiency of IPTABLES rule set generation
and processing, allowing one to define rules based on sets of adddresses at a time.

The existing documentation / manpage for iptables in FC5 refers to IPSET, though
the commands / functionality appears to be absent in the iptables distributed.

Adding ipset in to the distribution would be easy and would facilitate many
sysadmins usages where efficient filtering operations on sets of addresses
need to be done, and would be without impact / risk to any users not making
use of that modular functionality.

Adding ipset "manually" to a distribution which lacks it, however, is difficult
in that replacing / recompiling against low level packages such as iptables,
the kernel, et. al. must be done, causing down time and requiring significant
specialized knowledge and time.

Thanks & keep up the good work!

http://www.netfilter.org/projects/ipset/index.html

What is ipset?

IP sets are a framework inside the Linux 2.4.x and 2.6.x kernel, which can be
administered by the ipset utility. Depending on the type, currently an IP set
may store IP addresses, (TCP/UDP) port numbers or IP addresses with MAC
addresses in a way, which ensures lightning speed when matching an entry against
a set.

If you want to

    * store multiple IP addresses or port numbers and match against the
collection by iptables at one swoop
    * dynamically update iptables rules against IP addresses or ports without
performance penalty
    * express complex IP address and ports based rulesets with one single
iptables rule and benefit from the speed of IP sets

then ipset may be the proper tool for you. 

http://ipset.netfilter.org/

IP sets are a framework inside the Linux 2.4.x and 2.6.x kernel, which can be
administered by the ipset utility. Depending on the type, currently an IP set
may store IP addresses, (TCP/UDP) port numbers or IP addresses with MAC
addresses in a way, which ensures lightning speed when matching an entry against
a set.

If you want to

    * store multiple IP addresses or port numbers and match against the
collection by iptables at one swoop;
    * dynamically update iptables rules against IP addresses or ports without
performance penalty;
    * express complex IP address and ports based rulesets with one single
iptables rule and benefit from the speed of IP sets 

then ipset may be the proper tool for you.

IP sets was written by Jozsef Kadlecsik and it is based on ippool by Joakim
Axelsson, Patrick Schaaf and Martin Josefsson.
Many thanks to them for their wonderful work! 


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