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Chapter 23 Firewall
The rule for the CEO must come before the rule that blocks all LAN1 to WAN IRC traffic. If the rule
that blocks all LAN1 to WAN IRC traffic came first, the CEO's IRC traffic would match that rule and
the ISG50 would drop it and not check any other firewall rules.
23.1.4 Firewall Rule Configuration Example
The following Internet firewall rule example allows Doom players from the WAN to IP addresses
192.168.1.10 through 192.168.1.15 (Dest_1) on the LAN1.
Click Configuration > Firewall. In the summary of firewall rules click Add in the heading row to
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configure a new first entry. Remember the sequence (priority) of the rules is important since they
are applied in order.
Figure 236 Firewall Example: Firewall Screen
At the top of the screen, click Create new Object > Address.
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The screen for configuring an address object opens. Configure it as follows and click OK.
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Figure 237 Firewall Example: Create an Address Object
Click Create new Object > Service.
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ISG50 User's Guide
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Troubleshooting
