[CentOS] Why iptables are not working?

Hi;

in our server we dont have "iptables" command! and i am trying to install it
with that

yum -y install iptables

after this command it says that "...nothings to do". Do you have any
suggestion for installing the iptables?

thanks a lot....

Note:
CENTos 5.1 is istalled...

-- 
Tolun ARDAHANLI
Bilgisayar Muhendisi
E-posta:tolun.ardahanli at linux.org.tr
Icq:326600

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Tolun ARDAHANLI
Computer Engineer
E-mail:tolun.ardahanli at linux.org.tr
Icq:326600
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