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Cisco Catalyst Blade Switch 3130 and 3032 for Dell Command Reference
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Chapter 2 Cisco Catalyst Blade Switch 3130 and 3032 for Dell Cisco IOS Commands
ipv6 access-list
ipv6 access-list
Use the
ipv6 access-list
global configuration command on the switch stack or on a standalone switch to
define an IPv6 access list and to place the switch in IPv6 access list configuration mode. To remove the
access list, use the
no
form of this command.
ipv6 access-list
access-list-name
no ipv6 access-list
access-list-name
Note
This command is supported only if you have configured a dual IPv4 and IPv6 Switch Database
Management (SDM) template on the switch.
Syntax Description
Defaults
No IPv6 access list is defined.
Command Modes
Global configuration
Command History
Usage Guidelines
To configure the dual IPv4 and IPv6 template, enter the
sdm prefer
dual-ipv4-and-ipv6
{
default
|
vlan
)
global configuration command and reload the switch.
The
ipv6 access-list
command is similar to the
ip access-list
command, but it is IPv6-specific.
Note
IPv6 ACLs are defined by a unique name (IPv6 does not support numbered ACLs). An IPv4 ACL and
an IPv6 ACL cannot share the same name.
See the
deny (IPv6 access-list configuration)
and
permit (IPv6 access-list configuration)
commands
for more information on filtering IPv6 traffic based on IPv6 option headers and optional, upper-layer
protocol-type information. See the “Examples” section for an example of a translated IPv6 ACL
configuration.
Note
Every IPv6 ACL has implicit
permit icmp any any nd-na
,
permit icmp any any nd-ns
, and
deny ipv6
any any
statements as its last match conditions. The two
permit
conditions allow ICMPv6 neighbor
discovery. To disallow ICMPv6 neighbor discovery and to deny
icmp any any nd-na
or
icmp any any
nd-ns
, there must be an explicit
deny
entry in the ACL. For the implicit
deny ipv6 any any
statement
to take effect, an IPv6 ACL must contain at least one entry.
access-list-name
Name of the IPv6 access list. Names cannot contain a space or quotation
mark or begin with a numeric.
Release
Modification
12.2(40)EX1
This command was introduced.