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Configuring IPv6 ACLs
These sections describe how to configure and apply IPv6 ACLs:
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Default IPv6 ACL Configuration
No IPv6 ACLs are configured or applied.
Interaction with Other Features and Switches
Configuring IPv6 ACLs causes these interactions with other features or switch characteristics:
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Creating IPv6 ACLs
Beginning in privileged EXEC mode, follow these steps to create an IPv6 ACL:
Command
Step 1
configure terminal
Step 2
ipv6 access-list access-list-name
Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
36-4
Default IPv6 ACL Configuration, page 36-4
Interaction with Other Features and Switches, page 36-4
Creating IPv6 ACLs, page 36-4
Applying an IPv6 ACL to an Interface, page 36-8
If an IPv6 router ACL is configured to deny a packet, the packet is not routed. A copy of the packet
is sent to the Internet Control Message Protocol (ICMP) queue to generate an ICMP unreachable
message for the frame.
If a bridged frame is to be dropped due to a port ACL, the frame is not bridged.
You can create both IPv4 and IPv6 ACLs on a switch or switch stack, and you can apply both IPv4
and IPv6 ACLs to the same interface. Each ACL must have a unique name; an error message appears
if you try to use a name that is already configured.
You use different commands to create IPv4 and IPv6 ACLs and to attach them to the same Layer 2
or Layer 3 interface. If you use the wrong command to attach an ACL (for example, an IPv4
command to attach an IPv6 ACL), you receive an error message.
You cannot use MAC ACLs to filter IPv6 frames. MAC ACLs can filter only non-IP frames.
If the hardware memory is full, any additional configured ACLs packets are forwarded to the CPU,
and the ACLs are applied in software.
Purpose
Enter global configuration mode.
Define an IPv6 access list using a name, and enter IPv6 access-list
configuration mode.
Chapter 36
Configuring IPv6 ACLs
OL-13270-06
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