iptables is built on top of netfilter, the packet alteration framework for Linux 2.4.x and 2.6.x.
iptables is the tool with which rules for packet shaping are set within netfilter. Iptables and netfilter are part of the same project, and as a front end, iptables is often used to refer to the entire project.
netfilter and iptables have become such an established project that the tools are a staple of linux distributions.
As iptables interacts with the netfilter service, it must be run with root privileges, and as such it is typically kept in /sbin/iptables.
netfilter: del.icio.us/tag/netfilter
linux
networking
iptables
netfilter
packets
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netfilter: del.icio.us/tag/netfilter
network
networking
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netfilter
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netfilter: del.icio.us/tag/netfilter
Application
linux
networking
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