CLI Guide

permanent (OPTIONAL) Enter the keyword permanent to specify that the route is not to be
removed, even if the interface assigned to that route goes down.
NOTE: If you disable the interface with an IPv6 address associated with the
keyword permanent, the route disappears from the routing table.
Defaults none
Command Modes CONFIGURATION
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
When the interface goes down, the system withdraws the route. The route is re-installed by the system when the
interface comes back up. When a recursive resolution is “broken,” the system withdraws the route. The route is re-
installed by the system when the recursive resolution is satised.
After an IPv6 static route interface is created, if an IP address is not assigned to a peer interface, the peer must be
manually pinged to resolve the neighbor information.
Example
Dell(conf)#ipv6 route ?
X:X:X:X::X IPv6 prefix x:x::y
Dell(conf)#ipv6 route 44::0 ?
/nn /nn Mask in slash format
Dell(conf)#ipv6 route 44::0 /64 ?
X:X:X:X::X Forwarding router's address
gigabitethernet Gigabit Ethernet interface
loopback Loopback interface
null Null interface
port-channel Port-Channel interface
tenGigabitethernet TenGigabit Ethernet interface
fortyGigE FortyGigabit Ethernet interface
tunnel Tunnel interface
vlan Vlan interface
Dell(conf)#ipv6 route 44::0 /64 33::1 ?
<1-255> Distance metric for this route
permanent Permanent route
tag Set tag for this route
Dell(conf)#ipv6 route 44::0 /64 33::1
Dell(conf)#ipv6 route 44::0 /64 tengigabitethernet 0/1 ?
X:X:X:X::X Forwarding router's address
Dell(conf)#ipv6 route 44::0 /64 tengigabitethernet 0/1 66::1
Dell(conf)#
Related Commands show ipv6 route — views the IPv6 congured routes.
ipv6 unicast-routing
Enable IPv6 Unicast routing.
Syntax
ipv6 unicast-routing
To disable unicast routing, use the no ipv6 unicast-routing command.
IPv6 Basics 653