1-12
Cisco ASA Series CLI Configuration Guide
Chapter 1 Configuring IPv6 Neighbor Discovery
Configuring the Router Advertisement Transmission Interval
Configuring the IPv6 Prefix in Router Advertisements
To configure the which IPv6 prefixes are included in IPv6 router advertisements, enter the following
command.
Detailed Steps
Command
Purpose
ipv6 nd prefix
ipv6-prefix
/
prefix-length
|
default
[[
valid-lifetime
preferred-lifetime
] | [
at
valid-date
preferred-date
] |
infinite
|
no-advertise
|
off-link
|
no-autoconfig
]
Example:
hostname (config-if)# ipv6 nd prefix
2001:DB8::/32 1000 900
Configures which IPv6 prefixes are included in IPv6 router advertisements.
The prefix advertisement can be used by neighboring devices to
autoconfigure their interface addresses. Stateless autoconfiguration uses
IPv6 prefixes provided in router advertisement messages to create the
global unicast address from the link-local address.
The
at
valid-date preferred-date
syntax indicates the date and time at
which the lifetime and preference expire. The prefix is valid until this
specified date and time are reached. Dates are expressed in the form
date-valid-expire month-valid-expire hh:mm-valid-expire
date-prefer-expire month-prefer-expire hh:mm-prefer-expire
.
The
default
keyword indicates that default values are used.
The optional
infinite
keyword specifies that the valid lifetime does not
expire.
The
ipv6-prefix
argument specifies the IPv6 network number to include in
router advertisements. This argument must be in the form documented in
RFC 2373 where the address is specified in hexadecimal using 16-bit
values between colons.
The optional
no-advertise
keyword indicates to hosts on the local link that
the specified prefix is not to be used for IPv6 autoconfiguration.
The optional
no-autoconfig
keyword indicates to hosts on the local link
that the specified prefix cannot be used for IPv6 autoconfiguration.
The optional
off-link
keyword indicates that the specified prefix is not used
for on-link determination.
The
preferred-lifetime
argument specifies the amount of time (in seconds)
that the specified IPv6 prefix is advertised as being preferred. Valid values
range from 0 to 4294967295 seconds. The maximum value represents
infinity, which can also be specified with infinite. The default is 604800 (7
days).
The
prefix-length
argument specifies the length of the IPv6 prefix. This
value indicates how many of the high-order, contiguous bits of the address
comprise the network portion of the prefix. The slash (/) must precede the
prefix length.
The
valid-lifetime
argument specifies the amount of time that the specified
IPv6 prefix is advertised as being valid. Valid values range from 0 to
4294967295 seconds. The maximum value represents infinity, which can
also be specified with infinite. The default is 2592000 (30 days).
Summary of Contents for 5505 - ASA Firewall Edition Bundle
Page 28: ...Glossary GL 24 Cisco ASA Series CLI Configuration Guide ...
Page 61: ...P A R T 1 Getting Started with the ASA ...
Page 62: ......
Page 219: ...P A R T 2 Configuring High Availability and Scalability ...
Page 220: ......
Page 403: ...P A R T 2 Configuring Interfaces ...
Page 404: ......
Page 499: ...P A R T 2 Configuring Basic Settings ...
Page 500: ......
Page 533: ...P A R T 2 Configuring Objects and Access Lists ...
Page 534: ......
Page 601: ...P A R T 2 Configuring IP Routing ...
Page 602: ......
Page 745: ...P A R T 2 Configuring Network Address Translation ...
Page 746: ......
Page 845: ...P A R T 2 Configuring AAA Servers and the Local Database ...
Page 846: ......
Page 981: ...P A R T 2 Configuring Access Control ...
Page 982: ......
Page 1061: ...P A R T 2 Configuring Service Policies Using the Modular Policy Framework ...
Page 1062: ......
Page 1093: ...P A R T 2 Configuring Application Inspection ...
Page 1094: ......
Page 1191: ...P A R T 2 Configuring Unified Communications ...
Page 1192: ......
Page 1333: ...P A R T 2 Configuring Connection Settings and QoS ...
Page 1334: ......
Page 1379: ...P A R T 2 Configuring Advanced Network Protection ...
Page 1380: ......
Page 1475: ...P A R T 2 Configuring Modules ...
Page 1476: ......
Page 1549: ...P A R T 2 Configuring VPN ...
Page 1550: ......
Page 1965: ...P A R T 2 Configuring Logging SNMP and Smart Call Home ...
Page 1966: ......
Page 2059: ...P A R T 2 System Administration ...
Page 2060: ......
Page 2098: ...1 8 Cisco ASA Series CLI Configuration Guide Chapter 1 Troubleshooting Viewing the Coredump ...
Page 2099: ...P A R T 2 Reference ...
Page 2100: ......