User Guide

Chapter 5. Administrative Information Base
Configuration of packet filter rules, application lists, and personal firewall
policies.
o Packet Filter Rules — [Personal Firewall|Packet Filter Rules], [Packet Filter
Rules Definitions], [rw]
List of packet filter rules to be included in the personal firewall policies. All
packet filter rules are allow-rules: only packets that match one of the
configured packet filter rules are allowed through the personal firewall. The
<New> tab allows the creation of a new table entry. The <Open>, <Edit> and
<Delete> tabs allow the inspection, modification, and deletion of an existing
entry, respectively. Each entry in the table shows the following information
items:
− Rule Name — Unique alphanumeric name of the packet filter rule.
− Direction — Direction of the traffic that is subject to the packet filter rule.
Options (choose one): <In> (from the network to the laptop), <Out> (from
the laptop to the network).
− IP Addresses — Set of IP address ranges including the address of a packet
matching the packet filter rule. The address must be found in the Source IP
Address field in the case of a packet filter rule with <In> direction, and in
the Destination IP Address field in the case of a packet filter rule with
<Out> direction.
− Source Ports — Set of port values including the source port number of a
packet matching the packet filter rule. This field is only relevant for packet
filter rules whose <Protocol> selection is either <TCP> or <UDP>.
− Destination Ports — Set of port values including the destination port
number of a packet matching the packet filter rule. This field is only
relevant for packet filter rules whose <Protocol> selection is either <TCP> o
<UDP>.
− Protocol — Protocol identifier carried in the header of a packet that
matches the packet filter rule. Options (choose one): <TCP>, <UDP>,
<ICMP>, <IP>.
− Rule Action — Select an action to take from the drop-down list (Accept or
Drop).
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