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Enabling IPv6 on a Network (Tasks)
This chapter contains tasks for configuring IPv6 on a network. The following major topics are covered:
For an overview of IPv6 concepts, refer to Chapter 3, Planning an IPv6 Addressing Scheme (Overview). For IPv6 planning tasks, refer to Chapter 4, Planning an IPv6 Network (Tasks). To find reference information about the tasks in this chapter, refer to Chapter 11, IPv6 in Depth (Reference).
Configuring an IPv6 Interface
The initial step in IPv6 configuration is enabling IPv6 on an interface. You can enable IPv6 support during the Solaris 10 installation process or by configuring IPv6 on the interfaces of an installed system.
During the Solaris 10 installation process, you can enable IPv6 on one or more of a system's interfaces. After installation, the following IPv6-related files and tables are in place:
Each interface that was enabled for IPv6 now has an associated /etc/hostname6.interface file, such as hostname6.dmfe0.
The /etc/nsswitch.conf file has been modified to accommodate lookups using IPv6 addresses.
The IPv6 address selection policy table is created. This table prioritizes the IP address format to use for transmissions over an IPv6-enabled interface.
This section describes how to enable IPv6 on the interfaces of an installed system.
Enabling IPv6 on an Interface (Task Map)
Task | Description | For Instructions |
|---|---|---|
Enable IPv6 on an interface on a system that has already been installed with the Solaris 10 OS. | Use this task for enabling IPv6 on an interface after the Solaris 10 OS has been installed. | |
Make the IPv6-enabled interface persist across reboots. | Use this task to make the IPv6 address of the interface permanent. | |
Turn off IPv6 address autoconfiguration. | Use this task if you need to manually configure the interface ID portion of the IPv6 address. |
How to Enable an IPv6 Interface for
the Current Session
Begin your IPv6 configuration process by enabling IPv6 on the interfaces of all systems that will become IPv6 nodes. Initially, the interface obtains its IPv6 address through the autoconfiguration process, as described in IPv6 Address Autoconfiguration. You then can tailor the node's configuration based on its function in the IPv6 network, either as a host, server, or router.
Note - If the interface is on the same link as a router that currently advertises an IPv6 prefix, the interface obtains that site prefix as part of its autoconfigured addresses. For more information, refer to How to Configure an IPv6-Enabled Router.
The following procedure explains how to enable IPv6 for an interface that was added after Solaris 10 installation.
Before You Begin
Complete the planning tasks for the IPv6 network, such as upgrading hardware and software, and preparing an addressing plan. For more information, see IPv6 Planning (Task Maps).
Log in to the prospective IPv6 node as Primary Administrator or as superuser.
The Primary Administrator role includes the Primary Administrator profile. To create the role and assign the role to a user, see Chapter 2, "Working With the Solaris Management Console (Tasks)," in System Administration Guide: Basic Administration.
Enable IPv6 on an interface.
# ifconfig inet6 interface plumb up
Start the IPv6 daemonin.ndpd.
# /usr/lib/inet/in.ndpd
Note - You can display the status of a node's IPv6-enabled interfaces by using the ifconfig-a6 command.
Example 7-1 Enabling an IPv6 Interface After Installation
This example shows how to enable IPv6 on the qfe0 interface. Before you begin, check the status of all interfaces configured on the system.
# ifconfig -a
lo0: flags=1000849 <UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
qfe0: flags=1000863 <UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST,IPv4> mtu 1500
index 2
inet 172.16.27.74 netmask ffffff00 broadcast 172.16.27.255
ether 0:3:ba:13:14:e1
|
Only the qfe0 interface is currently configured for this system. Enable IPv6 on this interface as follows:
# ifconfig inet6 qfe0 plumb up
# /usr/lib/inet/in.ndpd
# ifconfig -a6
lo0: flags=2000849 <UP,LOOPBACK,RUNNING,MULTICAST,IPv6> mtu 8252 index 1
inet6 ::1/128
qfe0: flags=2000841 <UP,RUNNING,MULTICAST,IPv6> mtu 1500 index 2
ether 0:3:ba:13:14:e1
inet6 fe80::203:baff:fe13:14e1/10
|
The example shows the status of the system's interface before and after qfe0becomes IPv6-enabled. The -a6 option of ifconfig shows just the IPv6 information for qfe0 and the loopback interface. Note that the output indicates that only a link-local address was configured for qfe0, fe80::203:baff:fe13:14e1/10. This address indicates that as of yet no router on the node's local link advertises a site prefix.
After IPv6 is enabled, you can use the ifconfig -a command to display both IPv4 and IPv6 addresses for all interfaces on a system.
Next Steps
To configure the IPv6 node as a router, go to Configuring an IPv6 Router.
To maintain the IPv6 interface configuration across reboots, see How to Enable Persistent IPv6 Interfaces.
To disable address autoconfiguration on the node, see How to Turn Off IPv6 Address Autoconfiguration.
To tailor the node as a server, see the suggestions in Administering IPv6-Enabled Interfaces on Servers.