System information

Chapter 7: Managing Device Security | 235
GS752TXS Smart Switch Software Administration Manual
example, to apply the rule to all hosts in the 192.168.1.0/24 subnet, enter 0.0.0.255 in
the Source IP Mask field. This field is required when you configure a source IP
address.
3. To delete an IP ACL rule, select the check box associated with the rule, and then click
Delete.
4. To update an IP ACL rule, select the check box associated with the rule, update the desired
fields, and then click Apply. You cannot modify the Rule ID of an existing IP rule.
5. Click Cancel to cancel the configuration on the screen and reset the data on the screen to
the latest value of the switch.
6. If you change any of the settings on the page, click Apply to send the updated configuration
to the switch. Configuration changes take effect immediately.
IP Extended Rules
Use the IP Extended Rules page to define rules for IP-based extended ACLs. The access list
definition includes rules that specify whether traffic matching the criteria is forwarded
normally or discarded.
Note: There is an implicit “deny all” rule at the end of an ACL list. This
means that if an ACL is applied to a packet and if none of the explicit
rules match, then the final implicit “deny all” rule applies and the
packet is dropped.
To display the IP extended Rules page, click Security  ACL, then click the Advanced  IP
Extended Rules link. In the following figure, an extended IP ACL exists, and one rule has
been configured.