Intrusion Defense Firewall 1.2 User's Guide - Trend Micro? Online ...

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Port: 25 (default) Use: E-mail Alerts Protocol: TCP Initiated By: IDF Server Connected To: Specified SMTP server Proxy: No Configuration: This port can be configured in the IDF Server Settings section Port: Randomly selected Use: DNS lookup for hostnames Protocol: TCP Initiated by: IDF Server Connected to: DNS server Proxy: No Configuration: The port is randomly selected when the IDF Server Computer needs to lookup a hostname. © Copyright 2010 Trend Micro Inc. www.trendmicro.com All rights reserved. - 144 -
Firewall Rule Sequence Packets arriving at a Computer running a IDF Client Plug-in get processed first by Firewall Rules, then the Stateful Configuration conditions, and finally by the DPI Rules. This is the order in which Firewall Rules are applied (incoming and outgoing): 1. Firewall Rules with priority 4 (highest) 1. Bypass 2. Log Only (Note that Log Only rules can only be assigned a priority of 4 (highest)) 3. Force Allow 4. Deny 2. Firewall Rules with priority 3 (high) 1. Bypass 2. Force Allow 3. Deny 3. Firewall Rules with priority 2 (normal) 1. Bypass 2. Force Allow 3. Deny 4. Firewall Rules with priority 1 (low) 1. Bypass 2. Force Allow 3. Deny 5. Firewall Rules with priority 0 (lowest) 1. Bypass 2. Force Allow 3. Deny 4. Allow (Note that an Allow rule can only be assigned a priority of 0 (lowest)) Within the same priority context, a deny rule will override an allow rule, and a force allow rule will override a deny rule. By using the rule priorities system, a higher priority deny rule can be made to override a lower priority force allow rule. Consider the example of a DNS server policy that makes use of a force allow rule to allow all incoming DNS queries over TCP/UDP port 53. Creating a deny rule with a higher priority than the force allow rule lets you specify a particular range of IP addresses that must be prohibited from accessing the same public server. Priority-based rule sets allow you set the order in which the rules are applied. If a deny rule is set with the highest priority, and there are no force allow rules with the same priority, then any packet matching the deny rule is automatically dropped and the remaining rules are ignored. Conversely, if a force allow rule with the highest priority flag set exists, any incoming packets matching the force allow rule will be automatically allowed through without being checked against any other rules. A Note on Logging Bypass Rules will never generate a log entry. This is not configurable. Log-only rules will only generate a log entry if the packet in question is not subsequently stopped by either: a deny rule, or an allow rule that excludes it. If the packet is stopped by one of those two rules, those rules will generate the log entry and not the logonly rule. If no subsequent rules stop the packet, the log-only rule will generate an entry. © Copyright 2010 Trend Micro Inc. www.trendmicro.com All rights reserved. - 145 -
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Intrusion Defense Firewall 1.2 for
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Table Of Contents Introduction ....
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Introduction © Copyright 2010 Tren
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DPI (Deep Packet Inspection) Rules
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Server Plug-in Interface © Copyrig
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Task Pane Clicking an element in th
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Shortcut Menus Many of the IDF Serv
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Click Add/Remove Widgets... at the
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Reports IDF Server Plug-in produces
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Note that if you apply other settin
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The Computer's status will be displ
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Computer Details The Computer's Det
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Alerts Alerts are displayed the sam
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Security Profiles Security Profiles
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Firewall (Events, Rules, and Statef
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Firewall The information box will t
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Interface: The MAC address of the i
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Firewall Rules Firewall Rules exami
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Options Alert Select whether or not
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TCP The Firewall Rule engine, by de
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The ICMP (pseudo-)stateful mechanis
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DPI Events By default, the IDF Serv
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DPI Rules Whereas Firewall Rules an
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you which rule on which Computer(s)
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Components IP Lists Reusable lists
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MAC Lists Use the MAC Lists section
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Contexts Contexts are a powerful wa
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Schedules Schedules are used by var
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System Events The System Event log
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System Settings The System > System
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example, your network has no DNS an
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Firewall and DPI Network Engine Mod
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ESTABLISHED Timeout: How long to st
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Interface Isolation Interface Isola
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Analysis The Analysis screen allows
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Notifications Alert Notification (f
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System Alert Configuration View Ale
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Backup Perform regular database bac
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Updates Security Updates Security U
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How To... Customize the Dashboard H
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Configure Alerts There are just ove
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3. In the "Direction of IDF Server
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Set Up Email Alerts IDF Server Plug
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3. Start the " Intrusion Defense Fi
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Configure Logging By default, IDF S
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Configure Port Scan Settings The ID
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click it to view its Details window
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Interface Information IP Informatio
Page 97 and 98: System Event Log Format System Even
Page 99 and 100: Backup and Restore IDF Intrusion De
Page 101 and 102: CALL sqlcmd -S localhost\IDF -E -v
Page 103 and 104: Upgrade the Server Plug-in The Offi
Page 105 and 106: Manually Uninstall a Client Plug-in
Page 107 and 108: #Wed Jun 11 16:19:19 EDT 2008 datab
Page 109 and 110: Migrate a Single Managed Computer t
Page 111 and 112: counter3s counter3ports counter3ips
Page 113 and 114: Reference © Copyright 2010 Trend M
Page 115 and 116: managed Computer and the wizard wou
Page 117 and 118: The Inherit checkbox determines whe
Page 119 and 120: 4. In the Properties window, click
Page 121 and 122: 8. The final step in the Firewall s
Page 123 and 124: Click OK when you're done. Apply th
Page 125 and 126: Firewall IP Activity (Prevented) Fi
Page 127 and 128: The FORCE ALLOW rule can be placed
Page 129 and 130: 1. First enable stateful inspection
Page 131 and 132: Tap Mode IPv6 Packet Max Incoming C
Page 133 and 134: 3602 Windows Service Error 3603 Fil
Page 135 and 136: Creating and Applying New Firewall
Page 137 and 138: Creating Custom DPI Rules Trend Mic
Page 139 and 140: Memory Allocation Error Out Of Orde
Page 141 and 142: Firewall Events CE Flags Event Note
Page 143 and 144: Inheritance and Overrides Settings
Page 145 and 146: In the Properties window for this F
Page 147: Required Ports A number of ports mu
Page 151 and 152: 191 Alert Changed 192 Alert Ended 1
Page 153 and 154: 473 DPI Rule Exported 474 DPI Rule
Page 155 and 156: 726 Get Client Plug-in Events Faile
Page 157: Privacy Policy Trend Micro, Inc. is
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