If your private network contains any vital information, think carefully in
terms of SECURITY before implementing IP Masquerade. By default, IP MASQ
becomes a GATEWAY for you to get onto the Internet, but it also can allow
someone from the Internet to possibly get into your internal network.
Once you have IP MASQ functioning, it is HIGHLY recommended for the user to
implement a STRONG IPFWADM/IPCHAINS firewall ruleset. Please see
Section 6.4.1,
Section 6.4.2 and
Section 6.4.3 located below for more details.
Requirements for IP Masquerade on Linux 2.0.x
Checking your existing kernel for MASQ functionality
