Configuring Neoware Firewall
Adding a New Filter
7
Adding a New Filter
To add a new firewall filter, click the
Add
button to display the
Add
a Filter
dialog.
This dialog enables you to enter all the necessary information for
your filter.
You must enter a name for your filter in the
Filter Name
field, and
specify the
Filter Action
by selecting either
Permit
traffic or
Block
traffic.
You can enter a
Description
for this new filter so that you can
quickly discover what it does.
Defining Filter Rules
You must define the
Rules
used by the filter. Rules include proto-
cols, ports, and source/destination addresses.
Important:
Rules are applied from most specific to least specific.
For example, a rule to "permit TCP port 21" would be applied over
a rule to "block all TCP packets". For the firewall to function prop-
erly, the first rules written should block all inbound and outbound
traffic, then individual rules should be written to permit necessary
traffic.
