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ipv6 nd dns-server
Configures Recursive DNS Server (RDNSS) addresses to be distributed via IPv6 router advertisements to an IPv6 device.
Syntax
ipv6 nd dns-server {ipv6-RDNSS-address} {lifetime | infinite}
To remove the IPv6 RDSS configuration, use no ipv6 nd dns-server {ipv6-RDNSS-address}
{lifetime | infinite}
Parameters
ipv6-RDNSS-
address
Enter the IPv6 Recursive DNS Server’s (RDNSS) address. You can specify up to 4
IPv6 RDNSS server addresses.
lifetime Enter the lifetime in seconds. The amount of time the IPv6 host can use the IPv6
RDNSS address for name resolution. The range is 0 to 4294967295 seconds.
When you specify the maximum lifetime value of 4294967295 or infinite,
the lifetime does not expire. A value of 0 indicates to the host that the RDNSS
address should not be used. You must specify a lifetime using the lifetime or
infinite parameter.
infinite Enter the keyword infinite to specify that the RDNSS lifetime does not expire.
Defaults Not Configured
Command Modes INTERFACE CONFIG
Supported Modes Full–Switch
Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.5(0.0) Introduced on the MXL.
Usage
Information
Use this command to add, edit, or delete an IPv6 RDNSS address and lifetime value. You can configure up
to four IPv6 RDNSS addresses. You must specify a lifetime using the lifetime or infinite parameter.
Example
ipv6 nd prefix
Specify which IPv6 prefixes are included in Neighbor Advertisements.
Syntax
ipv6 nd prefix {ipv6-prefix | prefix-length | default} [no-advertise] |
[no-autoconfig] [no-rtr-address] [off-link] [lifetime {valid | infinite}
{preferred | infinite}]
Parameters
ipv6-prefix Enter an IPv6 prefix.
prefix-length Enter the prefix then the prefix length. The length range is from 0 to 128.
default Enter the keyword default to set default parameters for all prefixes.
no-advertise Enter the keyword no-advertise to prevent the specified prefix from being
advertised.
no-autoconfig Enter the keywords no-autoconfig to disable Stateless Address
Autoconfiguration.
no-rtr-address Enter the keyword no-rtr-address to exclude the full router address from
router advertisements (the R bit is not set).
off-link Enter the keywords off-link to advertise the prefix without stating to recipients
that the prefix is either on-link or off-link.
valid-lifetime |
infinite
Enter the amount of time that the prefix is advertised, or enter infinite for
an unlimited amount of time. The range is from 0 to 4294967295. The default is
592 IPv6 Basics