Filter list

The filter list allows you to examine the filters that are generated from the rules specified in the action, object and rule tables.

Important: If a filter is defined manually from the command line or in WEBconfig and there are errors in the syntax, no entry will be created in the filter list. In this case, no error message will be output. If you configure the filters manually, you should always use the filter list to check whether the desired filters have actually been created.

On the command line, the filters that have been configured are listed by using the command show filter:





Under WEBconfig, you invoke the filter list under Extras > LCOS menu tree > Status > IP-Router > Filter-List. It is structured as follows:





The individual fields in the filter list have the following meaning:

Entry Description
Idx. Sequential index
Prot. Protocol to be filtered, e.g. 6 for TCP or 17 for UDP
Source This column displays either the MAC address or the network as an address with the prefix length.
Q start Start source port of the packets to be filtered.
Q end End source port of the packets to be filtered. Together with the start source port, this defines a port range in which the filter takes effect. If start and end port are 0, the filter applies to all source ports.
Destination This column displays either the MAC address, the network as an address with the prefix length, or the DNS destination.
Z start Start destination port of the packets to be filtered.
Z end End destination port of the packets to be filtered. Together with the start destination port, this defines a port range in which the filter takes effect. If start and end port are 0, the filter applies to all destination ports.
Action This column displays the “main action” as text, i.e. the action that is executed when the first limit is exceeded. The first limit can also be an implicit limit. For example, when throughput is limited by a single value only, an implicit limit is added that is linked with an “accept” action. The main action in this case is “accept”. Actions can be viewed in full with the command show filter.
Linked Indicates whether this rule is a first match rule (linked = no). Only in the case of linked rules will further rules be evaluated if this rule applies.
Prio Priority of the rule that created the entry.
Src-Tag Original routing tag
Rtg-Tag Assigned routing tag after the filter was applied.

www.lancom-systems.com

LANCOM Systems GmbH | A Rohde & Schwarz Company | Adenauerstr. 20/B2 | 52146 Wuerselen | Germany | E‑Mail info@lancom.de

LANCOM Logo