Technical data
ServerIron ADX Graphical User Interface Guide 115
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Access Control Lists
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• CRL File Format: Click one of the following options:
PEM—To direct the CRL to be downloaded in the PEM format.
DER—To direct the CRL to be downloaded in the Distinguished Encoding Rules (DER)
format. By default, PEM is selected.
• Refresh Interval: Specifies the number of hours to wait before updating the CRL record.
5. Click Apply to save your entries.
Click Reset to revert the configuration to the previous configured values.
For more information on the CRL, refer to the ServerIron ADX Security Guide.
Access Control Lists
Access Control Lists (ACL) allows you to filter traffic based on the information in the IP packet
header. You can use IP ACLs to provide input to other features such as distribution lists and rate
limiting. The ACLs can be configured in two types:
• Standard ACL—Permits or denies packets based on the source IP addresses.
• Extended ACL—Permits or denies packets based on the source and destination IP addresses
and also based on the IP protocol information.
Configuring standard ACLs
To configure a standard ACL on the device, perform the following steps within the Configure tab.
1. Click Security on the menu bar.
2. From the sidebar, select ACL.
The ACL Summary page is displayed, as shown in Figure 97.
FIGURE 97 ACL summary
3. Click New IPv4 Standard ACL at the bottom of the ACLs page.










