Netgear GS724TS-100NAS User Manual download pdf (Page 193)

Chapter 5: Managing Device Security | 193

GS716Tv2 and GS724Tv3 Software Administration Manual

subnet mask. A wildcard mask is in essence the inverse of a subnet mask. For

example, to apply the rule to all hosts in the 192.168.1.0/24 subnet, you type

0.0.0.255 in the Source IP Mask field. This field is required when you configure a

source IP address.

2. To delete an IP ACL rule, select the check box associated with the rule, and then click

Delete.

3. 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.

4. Click Cancel to cancel the configuration on the screen and reset the data on the screen to

the latest value of the switch.

5. 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 Rule

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.

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Netgear GS724TS-100NAS User Manual Page 193