eir F1000 Modem User’s Guide
13.2 The Firewall Screen
Use this screen to set the security level of the firewall on the Device. Firewall rules are grouped
based on the direction of travel of packets to which they apply.
Click Security > Firewall to display the General screen.
Figure 109 Security > Firewall > General
The following table describes the labels in this screen.
Table 76 Security > Firewall > General
Select Enable to activate the firewall feature on the Device.
Select Easy to allow LAN to WAN and WAN to LAN packet directions.
Select Medium to allow LAN to WAN but deny WAN to LAN packet directions.
Select High to deny LAN to WAN and WAN to LAN packet directions.
Click Apply to save your changes.
Click Cancel to restore your previously saved settings.
13.3 The Protocol Screen
You can configure customized services and port numbers in the Protocol screen. For a
comprehensive list of port numbers and services, visit the IANA (Internet Assigned Number
Authority) website. See Appendix F on page 347 for some examples.
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