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5. Testing IP Masquerade

Finally, it's time to give IP Masquerading an official try after all this hard work. If you haven't already rebooted your Linux box, do so to make sure the machines boots ok, executes the /etc/rc.d/rc.firewall ruleset, etc. Next, make sure that both the internal LAN connection and connection of your Linux hosts to the Internet is okay.

Follow these -10- tests to make sure all aspects of your MASQ setup is running properly:

5.1 Testing local PC connectivity

5.2 Testing internal Linux connectivity

5.3 Testing External Linux connectivity

5.4 Testing local PC to Linux connectivity

5.5 Testing internal MASQ ICMP forwarding

5.6 Testing external MASQ ICMP forwarding

5.7 Testing MASQ functionality without DNS

5.8 Testing MASQ functionality with DNS

5.9 Testing more MASQ functionality with DNS

5.10 Any remaining functional, performance, etc. issues...

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