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Trend Micro InterScan Gateway Security Appliance M-Series ...

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Technology Reference<br />

scan one item at a time, resulting in reduced scanning performance, and possibly,<br />

dropped traffic.<br />

When <strong>InterScan</strong> <strong>Gateway</strong> <strong>Security</strong> <strong>Appliance</strong> is in diskless mode, the hard disk LED<br />

turns red and become static. <strong>InterScan</strong> <strong>Gateway</strong> <strong>Security</strong> <strong>Appliance</strong> notifies the<br />

administrator, by email, if there is a problem with the system hard disk.<br />

See Appendix D. Removing the Hard Disk<br />

False Positives<br />

A false positive occurs when a Web site, URL, "infected" file, or email message is<br />

incorrectly determined by filtering software to be of an unwanted type. For example,<br />

a legitimate email between colleagues may be detected as spam if a job-seeking filter<br />

does not distinguish between resume (to start again) and résumé (a summary of work<br />

experience)<br />

You can reduce the number of future false positives in the following ways:<br />

1. Update to the latest pattern file (phishing, virus, spam, and so on).<br />

2. Exempt the item from scanning by adding it to an Approved List.<br />

3. Report the false positive to <strong>Trend</strong> <strong>Micro</strong>.<br />

LAN Bypass<br />

LAN bypass is a fault-tolerance solution that allows <strong>InterScan</strong> <strong>Gateway</strong> <strong>Security</strong><br />

<strong>Appliance</strong> to continue to pass traffic if a software, hardware, or electrical failure<br />

occurs.<br />

<strong>InterScan</strong> <strong>Gateway</strong> <strong>Security</strong> <strong>Appliance</strong> has three (3) user-configurable Copper-based<br />

Ethernet ports. Each Ethernet port has two (2) indicator lights that allow you to<br />

determine the port’s current state and duplex speed. View the port indicator lights to<br />

determine if LAN bypass is currently active.<br />

C-3

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