Usage
Information
You can use this command to enable programming of /128 route prefixes in L3
host table or in LPM table. A warning message is displayed when you enter this
command stating that this setting takes effect for existing routes only when IPv6
route prefixes are cleared from the routing table (RTM). To enable programming
of /128 route prefixes in LPM table, use no ipv6 unicast-host-route command.
Example Dell(conf)# ipv6 unicast-host-route
Warning: Command will take effect for existing routes only
when IPv6
route prefixes are cleared from RTM
Dell(conf)#no ipv6 unicast-host-route
Warning: Command will take effect for existing routes only
when IPv6
route prefixes are cleared from RTM
Dell(conf)#
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
822 IPv6 Basics