What is the diffrence between port filtering and packet filtering ?

["Indunil Jayasooriya" <indunil75@xxxxxxxxx>]

Hi all, 

I want to set up a firewall on CentOS 4.4. 

I wnat to know the diiffrence between port filtering and packet filtering ? 

Can iptables do both? 

Is there another pkg better than this? if so, pls let me know. 

The purpose of this is to setup a firewall for production use. 

-- 
Thank you
Indunil Jayasooriya
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