C
HAPTER
29
| Access Control Lists
IPv6 ACLs
– 756 –
DEFAULT SETTING
None
COMMAND MODE
Standard IPv6 ACL
COMMAND USAGE
New rules are appended to the end of the list.
EXAMPLE
This example configures one permit rule for the specific address
2009:DB9:2229::79 and another rule for the addresses with the network
prefix 2009:DB9:2229:5::/64.
Console(config-std-ipv6-acl)#permit host 2009:DB9:2229::79
Console(config-std-ipv6-acl)#permit 2009:DB9:2229:5::/64
Console(config-std-ipv6-acl)#
RELATED COMMANDS
access-list ipv6 (754)
Time Range (625)
permit, deny
(Extended IPv6 ACL)
This command adds a rule to an Extended IPv6 ACL. The rule sets a filter
condition for packets with specific destination IP addresses, next header
type, or flow label. Use the no form to remove a rule.
SYNTAX
[no] {permit | deny}
{any | destination-ipv6-address[/prefix-length]}
[dscp dscp] [flow-label flow-label] [next-header next-header]
[time-range time-range-name]
any – Any IP address (an abbreviation for the IPv6 prefix ::/0).
destination-ipv6-address - An IPv6 destination address or network
class. The address must be formatted according to RFC 2373 “IPv6
Addressing Architecture,” using 8 colon-separated 16-bit
hexadecimal values. One double colon may be used in the address
to indicate the appropriate number of zeros required to fill the
undefined fields. (The switch only checks the first 64 bits of the
destination address.)
prefix-length - A decimal value indicating how many contiguous bits
(from the left) of the address comprise the prefix; i.e., the network
portion of the address. (Range: 0-128 for source prefix, 0-8 for
destination prefix)
dscp – DSCP traffic class. (Range: 0-63)
flow-label – A label for packets belonging to a particular traffic
“flow” for which the sender requests special handling by IPv6
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