What are the basics to configure Red Hat Enterprise Linux as a router to perform Network Address Translation (NAT) using iptables?
Updated -
Limitation:
This is applicable for Red Hat Enterprise Linux 3 and above.
There are a few ways to set up a Linux machine to route. Here is a relatively straight forward and common method. This method requires that the system use iptables for Network Address Translation (NAT).
To enable packet forwarding:
echo "1" > /proc/sys/net/ipv4/ip_...Subscriber exclusive content
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