7.3 Definition of Custom Traffic Rules
79
Use the
Any
button to replace all defined items with the
Any
item (this item is also used by
default for all new rules). This item will be removed automatically when at least one new item
is added.
Use the
Remove
button to remove all items defined (the
Nothing
value will be displayed in the
item list). This is helpful when rules are changed — it is not necessary to remove items one
by one. Whenever at least one item is added, the
Nothing
value will be removed automatically.
If the
Nothing
value is kept for the
Source
or/and
Destination
item, a corresponding rule is
disabled.
The
Nothing
value takes effect when network interfaces (see chapter
) and users or groups
(see chapter
) are removed . The
Nothing
value is automatically used for all
Source
,
Desti-
nation
or/and
Service
items of rules where a removed interface (or a user account, a group or
a service) has been used. Thus, all these rules are disabled.
Definition of rules with the
Nothing
value in any column is not of any use — it is more useful
to use the checkbox in the
Name
column instead to disable a rule.
Note:
Removed interfaces cannot be replaced by the
Any
value, otherwise the traffic policy
might be changed fundamentally (e.g. an undesirable traffic might be allowed).
Service
Definition of service(s) on which the traffic rule will be applied. Any number of services defined
either in
Configurations
→
Definitions
→
Services
(see chapter
) or using protocol and port
number (or by port range — a dash is used to specify the range) can be included in the list.
Figure 7.13
Traffic rule — setting a service
Summary of Contents for Firewall6
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