Dell PowerSwitch S4128F-ON OS10 Enterprise Edition User Guide Release 10.4.1.0 - Page 378

ipv6 nd, prefix

Page 378 highlights

Usage Information Example The no version of this command disables the other-config-flag option in RA messages. OS10(config)# interface ethernet 1/2/3 OS10(conf-if-eth1/2/3)# ipv6 nd other-config-flag Supported Releases 10.4.0E(R1) or later ipv6 nd prefix Configures the IPv6 prefixes that are included in Router Advertisement (RA) messages to neighboring IPv6 routers. Syntax Parameters ipv6 nd prefix {ipv6-prefix | default} [no-advertise] [no autoconfig] [no-rtraddress] [off-link] [lifetime {valid-lifetime seconds | infinite} {preferredlifetime seconds | infinite}] • ipv6-prefix - Enter an IPv6 prefix in x:x::y/mask format to include the prefix in RA mesages. Include prefixes that are not already in the subnets configured on the interface. • default - Configure the prefix parameters advertised in all subnets configured on the interface. • no-advertise - (Optional) Do not advertise the specified prefix. By default, all prefixes in configured subnets are advertised. • no-autoconfig - (Optional) Sets AdvAutonomous to Off for the specified prefix in the radvd.conf file. This setting tells hosts to not use this prefix for address autoconfiguration. By default, AdvAutonomous is On. • no-rtr-address - (Optional) Sets AdvRouterAddr to Off for the prefix in the radvd.conf file. The Off setting tells hosts to not use the advertising router's address for on-link determination. By default, AdvRouterAddr is On. • off-link - (Optional) Sets AdvOnLink to Off for the prefix in the radvd.conf file. The Off setting tells hosts to not use this prefix for on-link determination. By default, AdvOnLink is On. • lifetime {valid-lifetime seconds | infinite} - (Optional) Sets AdvValidLifetime (in seconds) for the prefix in the radvd.conf file. The prefix is valid for on-link determination only for the specified lifetime. The default is 86400 seconds (1 day). The infinite setting allows the prefix to be valid for on-link determination with no time limit. • lifetime {preferred-lifetime seconds | infinite} - (Optional) Sets AdvPreferredLifetime (in seconds) for the prefix in the radvd.conf file. IPv6 addresses generated from the prefix using stateless autoconfiguration remain preferred for the configured lifetime. The default is 14400 seconds (4 hours). The infinite setting allows addresses that are autoconfigured using the prefix to be preferred with no time limit. Defaults Command Mode Usage Information All prefixes in IPv6 subnets configured on an interface are advertised. INTERFACE • By default, all prefixes configured in IPv6 addresses on an interface are advertised. To advertise all default parameters in the subnet prefixes on an interface, enter the default keyword. • If you configure a prefix with valid or preferred lifetime values, the ipv6 nd prefix default no autoconfig command does not apply the default prefix values. • On-link determination is used to forward IPv6 packets to a destination IPv6 address. Examples Enable router advertisements OS10(conf-if-eth1/1/1)# ipv6 address 2001:0db8:2000::1/64 OS10(conf-if-eth1/1/1)# ipv6 nd send-ra Change default settings for interface subnet prefixes OS10(conf-if-eth1/1/1)# ipv6 nd prefix default lifetime infinite infinite 378 Layer 3

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Usage Information
The
no
version of this command disables the
other-config-flag
option in RA messages.
Example
OS10(config)# interface ethernet 1/2/3
OS10(conf-if-eth1/2/3)# ipv6 nd other-config-flag
Supported Releases
10.4.0E(R1) or later
ipv6 nd
prefix
Configures
the IPv6
prefixes
that are included in Router Advertisement (RA) messages to neighboring IPv6 routers.
Syntax
ipv6 nd prefix {
ipv6-prefix
| default} [no-advertise] [no autoconfig] [no-rtr-
address] [off-link] [lifetime {valid-lifetime
seconds
| infinite} {preferred-
lifetime
seconds
| infinite}]
Parameters
ipv6-prefix
— Enter an IPv6
prefix
in
x:x::y/mask
format to include the
prefix
in RA mesages. Include
prefixes
that are not already in the subnets
configured
on the interface.
default
Configure
the
prefix
parameters advertised in all subnets
configured
on the interface.
no-advertise
— (Optional) Do not advertise the
specified
prefix.
By default, all
prefixes
in
configured
subnets are advertised.
no-autoconfig
— (Optional) Sets
AdvAutonomous
to
Off
for the
specified
prefix
in the radvd.conf
file.
This setting tells hosts to not use this
prefix
for address
autoconfiguration.
By default,
AdvAutonomous
is
On
.
no-rtr-address
— (Optional) Sets
AdvRouterAddr
to
Off
for the
prefix
in the radvd.conf
file.
The
Off
setting tells hosts to not use the advertising router's address for on-link determination. By default,
AdvRouterAddr
is
On
.
off-link
— (Optional) Sets
AdvOnLink
to
Off
for the
prefix
in the radvd.conf
file.
The
Off
setting tells
hosts to not use this
prefix
for on-link determination. By default,
AdvOnLink
is
On
.
lifetime {valid-lifetime
seconds
| infinite}
— (Optional) Sets
AdvValidLifetime
(in
seconds) for the
prefix
in the radvd.conf
file.
The
prefix
is valid for on-link determination only for the
specified
lifetime. The default is 86400 seconds (1 day). The
infinite
setting allows the
prefix
to be valid for on-link
determination with no time limit.
lifetime {preferred-lifetime
seconds
| infinite}
— (Optional) Sets
AdvPreferredLifetime
(in seconds) for the
prefix
in the radvd.conf
file.
IPv6 addresses generated from
the
prefix
using stateless
autoconfiguration
remain preferred for the
configured
lifetime. The default is 14400
seconds (4 hours). The
infinite
setting allows addresses that are
autoconfigured
using the
prefix
to be
preferred with no time limit.
Defaults
All
prefixes
in IPv6 subnets
configured
on an interface are advertised.
Command Mode
INTERFACE
Usage Information
By default, all
prefixes
configured
in IPv6 addresses on an interface are advertised. To advertise all default
parameters in the subnet
prefixes
on an interface, enter the
default
keyword.
If you
configure
a
prefix
with valid or preferred lifetime values, the
ipv6 nd prefix default no
autoconfig
command does not apply the default
prefix
values.
On-link determination is used to forward IPv6 packets to a destination IPv6 address.
Examples
Enable router advertisements
OS10(conf-if-eth1/1/1)# ipv6 address 2001:0db8:2000::1/64
OS10(conf-if-eth1/1/1)# ipv6 nd send-ra
Change default settings for interface subnet
prefixes
OS10(conf-if-eth1/1/1)# ipv6 nd prefix default lifetime infinite infinite
378
Layer 3