Filter rules for a host
About this task
Host-based filter rules can be used to traffic wanted or ignored traffic according to the host that is sending the traffic.
- To specify trafficking that is based on ports, use a port range filter. See Filter rules for a port range.
To specify a filter rule for a host:
Note: Do not mix filter
rules from the two traffic segmentation methods. You can only use
the specified filter rules for the chosen method.
Procedure
- Enter the IP address of the host.
- If this value is left blank, all host IPs are captured based on the specified port number. However, the netmask size setting cannot be used without a valid host value.
- To add a host, click the Add More.
- If host traffic is coming from a specific netmask, enter the value here.
- If the Port1 and Port2 check box are unspecified, all traffic from the host/netmask is filtered based on the rule. For a host-based rule, do not specify specific ports.
- From the Add to drop down, select the DNCA instance to which to apply the rule.
- Then, you can select the type of filter rule:
Desired- Specified traffic is directed to the selected instance.Ignored- Specified traffic is ignored and dropped from further processing. See Ignored traffic filter rules.
- Click Add.
- The filter rule is added to the specified instance and is immediately applied to incoming traffic.