ip address ranges

Linux Iptables: How to specify a range of IP addresses or ports

by on September 18, 2006 · 6 comments

Someone recently asked me a question: How can I save time and script size by specifying a range of IP addresses or ports using iptables? In old version of iptables IP address ranges are only valid in the nat table (see below for example). However newer version does support option that allows you to specify [...]

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Linux Iptables Avoid IP Spoofing And Bad Addresses Attacks

by on June 28, 2005 · 15 comments

A sample shell script to stop IP spoofing for internet connected interface using iptables under Linux.

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