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4-67
Device Manager Guide, Cisco ACE 4700 Series Application Control Engine Appliance
OL-26645-02
Chapter 4 Configuring Virtual Contexts
Configuring Security with ACLs
Valid entries are 1 to 2147483647.
Step 4 In the Increment field, enter the number that is to be added to each entry in the ACL after the first entry.
You can enter any integer.
Valid entries are 1 to 2147483647.
Step 5 Do one of the following:
Click Resequence to save your entries and to return to the ACLs table.
Click Cancel to exit this procedure without saving your entries and to return to the ACLs table.
Related Topics
Configuring Security with ACLs, page 4-58
Creating ACLs, page 4-59
Setting EtherType ACL Attributes, page 4-67
Setting Extended ACL Attributes, page 4-61
Editing or Deleting ACLs, page 4-69
Setting EtherType ACL Attributes
Note By default, all traffic is denied by the ACE unless explicitly allowed. Only traffic that is explicitly
allowed in an ACL can pass. All other traffic is denied.
You can configure an ACL that controls traffic based on its EtherType. An EtherType is a sub-protocol
identifier. EtherType ACLs support Ethernet V2 frames. EtherType ACLs do not support
802.3-formatted frames because they use a length field as opposed to a type field. The only exception is
bridge protocol data units (BPDUs), which are SNAP-encapsulated, and the ACE is designed to
specifically handle BPDUs.
Procedure
Step 1 Choose Config > Virtual Contexts > context > Security > ACLs.
The ACLs table appears, listing the existing ACLs.
Step 2 Click Add.
The New Access List configuration screen appears.
Step 3 Enter the ACL name in the ACL Properties pane and choose Ethertype.
Note that the only selectable IP Address Type is IPv4.
Step 4 Choose one of the following radio buttons:
Deny to indicate that the ACE is to block connections.
Permit to indicate that the ACE is to allow connections.
Step 5 Choose one of the following from the Protocol field drop down menu for this ACL:
Any—Specifies any EtherType.
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