October 2002
Beginner
506 pages
16h 24m
English
Content preview from Mastering™ Network Security, Second Edition
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5.8. Additional Firewall Considerations
No matter what type of firewall you choose, you should analyze some potential features closely before selecting a specific firewall product. These features are common to all types of firewalls, so we'll review them here.
5.8.1. Address Translation
Address translation is considered a basic firewall function. Don't trust a firewall product that doesn't include this option. The conversion of an IP address from one value to another is called address translation. This feature has been implemented in most firewall products and is typically used when you do not want to let remote systems know the true IP address of your internal systems. Figure 5.11 shows the typical deployment of this configuration.
Our internal ...
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