Cisco Systems 3560 Manual Do Utilizador

Use the no deny | permit IPv6 access-list configuration commands with keywords to remove the deny 
or permit conditions from the specified access list. 

This example configures the IPv6 access list named CISCO. The first deny entry in the list denies all 
packets that have a destination TCP port number greater than 5000. The second deny entry denies 
packets that have a source UDP port number less than 5000. The second deny also logs all matches to 
the console. The first permit entry in the list permits all ICMP packets. The second permit entry in the 
list permits all other traffic. The second permit entry is necessary because an implicit deny -all condition 
is at the end of each IPv6 access list.

Switch(config)# ipv6 access-list CISCO

Switch(config-ipv6-acl)# deny tcp any any gt 5000

Switch config-ipv6-acl)# deny ::/0 lt 5000 ::/0 log

Switch(config-ipv6-acl)# permit icmp any any

Switch(config-ipv6-acl)# permit any any

This section describes how to apply IPv6 ACLs to network interfaces. You can apply an ACL to 
outbound or inbound traffic on Layer 3 interfaces, or to inbound traffic on Layer 2 interfaces. 

Beginning in privileged EXEC mode, follow these steps to control access to an interface:

 

Use the no ipv6 traffic-filter access-list-name interface configuration command to remove an access list 
from an interface.

This example shows how to apply the access list Cisco to outbound traffic on a Layer 3 interface:

Switch(config)# interface gigabitethernet 0/3

Switch(config-if)# no switchport

Switch(config-if)# ipv6 address 2001::/64 eui-64

Switch(config-if)# ipv6 traffic-filter CISCO out

Enter global configuration mode.

interface interface-id

Identify a Layer 2 interface (for port ACLs) or Layer 3 interface (for router 
ACLs) on which to apply an access list, and enter interface configuration mode.

Switches running the IP base image do not support port ACLs.

If applying a router ACL, change the interface from Layer 2 mode (the default) 
to Layer 3 mode. 

ipv6 address ipv6-address

Configure an IPv6 address on a Layer 3 interface (for router ACLs). 

This command is not required on Layer 2 interfaces or if the interface has 
already been configured with an explicit IPv6 address.

ipv6 traffic-filter access-list-name 
{in | out}

Apply the access list to incoming or outgoing traffic on the interface.

The out keyword is not supported for Layer 2 interfaces (port ACLs). If the 
switch is running the IP base image, the out keyword is not supported for Layer 
3 interfaces.

end 

Return to privileged EXEC mode.

show running-config

Verify the access list configuration. 

(Optional) Save your entries in the configuration file.